# Ohm's law Essays & Research Papers

## Best Ohm's law Essays

• Ohm's Law - 274 Words
Conclusion Ohm's Law states that V=RI where V is the difference of potential at the poles of the element (measured in volts), R is the resistance of the element being tested (a resistor in this case, measured in ohms), and I is the current passing through the circuit (measured in milliamps). When the Y-intercept on the attached voltage drop vs. current in the conductor graph is examined, it is observed that the the ranges of R values overlap, also the expected y-intercept value of 0 falls...
274 Words | 1 Page
• Ohm's Law - 437 Words
﻿ Ohm’s Law Lab Report Number Three Quyama T. Wheeler @02669651 Partner: Munah Kaye Amber Frazier Objective: To demonstrate Ohm’s law and to determine the resistance of a given resistor. Theory: Ohm’s law is the assertion that the current through a device is always directly proportional to the potential difference applied to the device. Electric current is the moving of charges from a higher potential to a lower potential. Wires of different...
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437 Words | 5 Pages
• Ohm's Law - 367 Words
OHM’S LAW AIM OF THE EXPERIMENT Confirmation of OHM’S LAW THEORY: It was George Simon Ohm (1787-1854) who established experimentally that the current in a metal wire is directly proportional to the potential difference V applied to its two ends, provided that the physical conditions such as temperature remain constant: I∞V Exactly how much current flows in a wire depends not only on the voltage, but also on the resistance the wire offers to the flow of electrons. Electrons are...
367 Words | 2 Pages
• Ohm's Law - 1968 Words
OHM’S LAW INTRODUCTION Ohm's law states that the current through a conductor between two points is directly proportional to the potential difference or voltage across the two points, and inversely proportional to the resistance between them provided the temperature remains constant. The mathematical equation that describes this relationship is: where V is the potential difference measured across the resistance in units of volts; I is the current through the resistance in units of amperes and...
1,968 Words | 5 Pages
• ## All Ohm's law Essays

• Ohm's Law Sample Problems
Ohm’s Law & Power Practice Problems . 1. A toaster oven is plugged into an outlet that provides a voltage difference of 120 V. What power does the oven use if the current is 10A? Show work: Answer ________________ 2. A VCR that is not playing still uses 10.0 W of power. What is the current if the VCR is plugged into a 120 V electric outlet? Show work: Answer ________________ 3. A flashlight bulb uses 2.4 W of power when the current in the bulb is 0.8 A. What is the...
382 Words | 2 Pages
• Measurement of Resistance and Ohm’s Law
﻿LAB 01 Measurement of Resistance and Ohm’s Law Section : 04 Instructor’s Name : BERNA DÜNDAR Experiment Date : 26/02/2014 Submission Date : 05/03/2014 Measurement of Resistance and Ohm’s Law Department of Physics,Işık University Meşrutiyet Köyü,Üniversite Sokağı,No:2 34980 Şile,İstanbul Abstract In this experiment we used two multimeters, a set of resistors, a bundle of connecting wires and a DC power supply. By...
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457 Words | 2 Pages
• Ohm's Law and Single Resistor Circuit
Purpose 1. Experiment with a single resistor circuit. 2. Analyze how one variable affects another while the third variable is kept constant. Provide reasoning to support Ohm’s Law by collecting data to interpret and analyze a graph and write a three-step conclusion. Procedure: 1. Go to the University of Colorado – Simulations. Click on the Battery-Resistor Circuit simulation, then click on Run Now! 2. Using the information from “Think About This”, hypothesize the relationship...
403 Words | 2 Pages
• Experiment: Ohmic Resistance and Ohm’s Law
Physics Practical Report: Experiment: Ohmic Resistance and Ohm’s Law Patrick Doan Mr Sadowsky 11 PHYS 71 12/9/08 Table of contents 1.0 Aim 1 2.0 Hypothesis 1 3.0 Materials 1 4.0 Method 2 5.0 Results 3 - 5.1 Qualitative Observations 3 - 5.2 Data 3-4 6.0 Discussion 5 7.0 Conclusion 6 8.0 Bibliography 7 9.0 Acknowledgements 7 1.0 Aim: To find out how current,...
1,549 Words | 8 Pages
• Voltage: Ohm's Law and Kirchhoff's Rules
Voltage: Ohm's Law and Kirchhoff's Rules ABSTRACT Ohm's Law and Kirchhoff's rules is fundamental for the understanding of dc circuit. This experiment proves and show how these rules can be applied to so simple dc circuits. INTRODUCTION In the theory of Ohm's Law, voltage is simply proportional to current as illustrated in the proportionality, V=RI. As shown in this relation, V represent voltage which is the potential difference across the two ends of a electrical conductor and between...
925 Words | 3 Pages
• Ohms Law - 797 Words
An Investigation of Ohm’s Law Stephen McGill (22044566) Results from test using 25Ω Resistor: Voltage(Volts) | Current(mA) | Resistance(Ohms) | 0 | 0 | 0 | 0.57 | 20 | 28.5 | 1.01 | 40 | 25.25 | 1.49 | 60 | 24.83 | 2.01 | 80 | 25.12 | 2.51 | 100 | 25.1 | 3.0 | 120 | 25.0 | 3.51 | 140 | 25.0 | 4.0 | 160 | 25.0 | 4.5 | 180 | 25.0 | 5.03 | 210 | 23.95 | 5.52 | 230 | 24.0 | 6.02 | 250 | 24.08 | 6.51 | 270 | 24.1 | 7.0 | 290 | 24.13 | 7.5...
797 Words | 4 Pages
• Kirchhoff's Law - 1024 Words
I. Title: Kirchhoff’s Law II. Objectives: To study the application of Kirchhoff’s Law to a D.C. network by comparing the observed and the computed values of the currents in the circuit. III. Apparatus: Resistance Module, 1pc. Battery of two cells (3 volts), 1pc. Dry cell (1.5 volts), Multitester, 4 pairs connectors IV. Procedure with Experimental Setup: Part A. 1.) The apparatus was arranged as in diagram 1. The switches were left open until it is...
1,024 Words | 5 Pages
• Joule's Law - 647 Words
JOULE’S LAW Introduction and research question In this experiment, we were going to investigate the resistance R of an immersion heater. We had to make our own heater, and measure the resistance using a multimeter. Then we had to measure the current I, using an ammeter and a voltmeter. And at last, we had to determine the power P of the immersion heater. This experiment would require to make a table with the data collection, a graph, and a few calculations using Joule’s and Ohms law. Our...
647 Words | 3 Pages
• OHMS LAW - 571 Words
Study about Ohm's Law: • To verify Ohm’s Law by calculating voltage, current and resistance based on different views of Ohm’s law as well as measuring those values to compare the theoretical results with the actual results. • To verify the relationships of R-I, V-I and R-V given ohm’s law by increasing one parameter while holding the other parameter constant, then measuring and calculating equivalent results of the third parameter. What is Ohm's Law: Ohm's Law is made from 3 mathematical...
571 Words | 3 Pages
• Kirchoffs's Laws - 2249 Words
A little history about Kirchoff Home Page A little history about Kirchoff A little history about Ohm Kirchoff's current and voltage laws Ohm's law Circuit analysis example Bibliography A little bit about the life and times of Gustav Robert Kirchoff: Gustav Robert Kirchoff was a German physicist born on March 12, 1824, in Konigsber, Prussia. Gustav Kirchoff's first research topic was on the conduction of electricity. As a result of this research, Kirchoff wrote the...
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2,249 Words | 5 Pages
• Ohms Law - 345 Words
Name: _____________________ Wire Resistance and Ohm’s Law PhET MiniLab Introduction: When an electrical potential exists in a circuit, a current may flow. Current is the flow of electrons in a circuit. Resistance in the circuit slows the flow of the electrons, reducing the current in the circuit. We will use the mathematical form of Ohm’s Law frequently when we investigate electric current and circuits later in this unit. • Open the PhET Simulation Electricity, Magnets, and Circuits (...
345 Words | 2 Pages
• Ohms Law - 431 Words
Mike Skelton Renee Hendricks AT105 8 December 2006 "Ohm's Law is the relationship among electric current, resistance, and voltage. The principle is named after the German scientist George Simon Ohm." Webster's Online Dictionary. I will be discussing the uses of Ohm's Law and why it is so important in everyday electrical problems whether it be simple or not. It is everywhere and used by many whether they notice it or not. Ohms law states that current in amperes is equal to voltage...
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431 Words | 2 Pages
• Ohms Law - 1861 Words
Investigating Ohm’s Law Introduction/Background Current is the rate of the flow of energy; an electric current is the flow of electrical charge around the circuit. It is measured in ohms (Ω). The quantity of flow in an electric circuit is dependent on the ohmic value of the resistance. The amount of resistance in a given circuit is stationary and is not dependent on the current. “The higher the voltage of a battery, the more potential energy per coulomb of charge it can supply.” (1) It...
1,861 Words | 7 Pages
• Ohms Law and Resistance - 784 Words
Aim: To determine the relationship between the length of eureka wire, and resistivity of the wire. Hypothesis: As the length of the wire increases, the resistance of the wire will increase. Background: Some materials have consistent resistance at the same temperature regardless of how much voltage is applied through them, these materials are known as ‘Ohmic’ resistors. This is because they are said to obey Ohm’s law, which states that if a voltmetre is used to measure the voltage (V) of...
784 Words | 3 Pages
• Ohm S Law - 1182 Words
﻿Erica Chan Sinh Nguyen Dat Nguyen Wed 2:00-5:00 02/19/2014 OHM’S LAW I. Purpose The purpose of this lab is to help understand how voltage, current and resistance are closely related to one another. The outcome from this lab is to be able to differentiate when to use ohmmeter and voltmeter for the individual circuit. II. Theory Ohm’s Law states that the electric current through a material is directly proportional to the voltage across a piece of material (such as wire) while the resistance is...
1,182 Words | 8 Pages
• Confirming Ohms Law - 666 Words
CONFIRMING OHM’S LAW BY ALEX KUCHMENKO 9.1 Aim – To Confirm Ohm’s Law through experimentation. Hypothesis – The More Ohms the resistor has, the weaker the current will become. Materials – Power pack, ammeter, voltmeter, resistors, connecting wires. METHOD – 1. POWER PACK POWER PACK RESISTOR RESISTOR VOLTMETER VOLTMETER AMMETER AMMETER A A V V Set up a known...
666 Words | 3 Pages
• Due Process of the Law - 286 Words
Experiment 3: Oscillators and timers Introduction The NE555 chip which operates at 5v, utilizes two comparators for temperature stability. This chip is capable of producing oscillations. It is made up of 8 pins and its oscillation mode is controlled by two resistors and a capacitor. Each pin is set to perform a function. Pin 1 serves as ground. Pin 2 is the trigger - the input to the lower comparator which sets the latch that causes output to go high. Pin 3 serves as the output....
286 Words | 1 Page
• physics lab ohms law
﻿New York City College of Technology Ohm’s law & resistors in parallel & in series Lab 4 Class: PHY 1434-E475 Due date: March, 13 20144 Group Names: Hisham Sageer Objectives: Our object is to confirm Ohm’s law by analyzing the dependence of the electrical current as a function of voltage and as a function of resistance. Also, we studied the current flow and voltage in series and parallel. Finally, the lab determined the equivalence resistance of series...
838 Words | 4 Pages
• Ohms Law Investigation - 1405 Words
Ohms Law Ohms Law Thomas More College Thomas More College How it applies to different materials Lucas Cosmidis 11 physics How it applies to different materials Lucas Cosmidis 11 physics Aim/Purpose The aim is to investigate whether 12v light bulb and a ceramic resistor are either non- ohmic or ohmic. From results calculations can be made to find the resistance produced and then graphed indicating whether the light bulb and ceramic resistor is ohmic or non ohmic Background...
1,405 Words | 7 Pages
• Resistance of Wire - 1788 Words
METHOD  Set p the equipment as shown on the diagram.  One meter length of wire is fixed to a one meter ruler.  The first crocodile clip is clipped to the wire at the 0cm position on the one meter ruler.  The second crocodile clip is clipped to the 10cm position.  The power supply is turned on. The voltage and current are then read of the ammeter and voltmeter, and recorded.  The power supply is then turned off and the second crocodile clip...
1,788 Words | 7 Pages
• Physic of light bulb - 586 Words
﻿DC Circuits: Electric Power PHY 114 Lab Report 10/09/2013 Abstract: The purpose of this experiment was to look at electric power dissipated in a load resistor in a circuit with a real power source, which has a finite internal resistance. We discover a surprising result about how to deliver the most power to a device from a source. Consider a simple circuit in which a battery of voltage drives a current through a resistor of resistance. As we have seen, the battery is continuously...
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586 Words | 3 Pages
• TRANSIENT ANALYSIS OF A RESISTOR-INDUCTOR (RL) CIRCUIT
﻿TRANSIENT ANALYSIS OF A RESISTOR-INDUCTOR (RL) CIRCUIT TOM CARNEY Table of Contents 1. Introduction………………………………………………………………………………….Page 2 2. Theoretical Analysis………………………………………………………………………Page 3 3. Questions related to constructed circuit……………………………………….Page 5 4. Conclusion…………………………………………………………………………………….Page 6 5. Works cited……………………………………………………………………………………Page 6 6. Illustrations…………………………………………………………………………………….Page 7-8 Transient...
883 Words | 4 Pages
• Hai by the Water 345 - 634 Words
Chapter 3: Current and Resistance Quick Quizzes - QUESTIONS 1. Consider positive and negative charges moving horizontally through the four regions in Figure 17.2. Rank the magnitudes of the currents in these four regions from lowest to highest. (Ia is the current in Figure 17.2a, Ib the current in Figure 17.2b, etc.) (a) Id , Ia , Ic , Ib (b) Ia , Ic , Ib , Id (c) Ic , Ia , Id , Ib (d) Id , Ib , Ic , Ia (e) Ia , Ib , Ic , Id (f) none of these [pic] Figure 17.2 2. Suppose a...
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634 Words | 3 Pages
• Georg Ohm Research Paper
Research Paper – Georg Ohm Georg Ohm was a German physicist born in March of 1789. Georg came from a Protestant family. His father who was a locksmith Johann Wolfgang Ohm, and his mother who is Maria Elizabeth Beck, was the daughter of a tailor. Even though his parents had not been really educated at the time, Ohm's father was a very wise man who had educated himself and his son Georg. In my research I found out that he wrote an elementary grade geometry book while teaching mathematics...
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• Planning & Designing Experiment: Investigating the current - potential difference relationship (IV Characteristics) for a metal wire.
Title: Investigating the current - potential difference relationship for a metal wire. Aim: To design an experiment that will facilitate an I - V Graph to be ascertained of a metal wire and thus find the resistance of the wire by deriving the inverse of the gradient of the graph. Skill: Planning & Designing Theory: Resistance is a property of any object or substance to resist or oppose the flow of an electrical current. The quantity of resistance in an electric circuit determines the amount of...
1,264 Words | 3 Pages
• method study - 969 Words
﻿ DE LA SALLE UNIVERSITY – DASMARIÑAS College of Engineering, Architecture and Technology INDUSTRIAL ENGINEERING PROGRAM EEET310Lb / 11-2pm Friday Experiment No. 5 EQUIVALENT RESISTANCE. DELTA-WYE TRANSFORMATION. Date Performed: August 16, 2013 Date Submitted: August 23, 2013 Instructor I. Abstract This experiment was performed to determine the transformation of delta to wye networks and wye to delta networks. It is...
969 Words | 5 Pages
• How the Length of a Wire Affects its Resistance
How the Length of a Wire Affects Its Resistance In my physics coursework I am going to investigate the effect of the length of a wire on its resistance. Resistance is the measure of how easy it is for current to flow through a wire. Current is the rate of flow of charge through a conductor, and it is measured in amps using an ammeter. To help me plan my investigation I have completed a preliminary experiment in which I investigated the effect of the thickness of a wire on its resistance, using...
1,404 Words | 7 Pages
• Biography of Georg Simon Ohm
BIOGRAPHY OF GEORG SIMON OHM Georg Simon Ohm (16 March 1787 – 6 July 1854) was a Bavarian (German) physicist and mathematician. As a high school teacher, Ohm began his research with the new electrochemical cell, invented by Italian scientist Alessandro Volta. Using equipment of his own creation, Ohm found that there is a direct proportionality between the potential difference (voltage) applied across a conductor and the resultant electric current. This relationship is known as Ohm's law....
1,672 Words | 5 Pages
• Multisim - 904 Words
MULTISIM TUTORIAL Start Click on Start Suite 10.0 All Programs Multisim. National Instruments Circuit Design Component Toolbar Simulation Toolbar Virtual Component Toolbar Ammeter/ Voltmeter Toolbar Instrument Toolbar Place Your Circuit Here 1. Open/Create Schematic A blank schematic Circuit 1 is automatically created. To create a new schematic click on File – New – Schematic Capture. To save the schematic click on File /Save As. To open an existing file click on File/ Open in the...
904 Words | 4 Pages
• Thevenin Theorem - 669 Words
﻿Thevenin Theorem It provides a mathematical technique for replacing for a given network, as viewed from two output terminals by a single voltage source with a series resistance. It makes the solution of complicated networks (particularly, electronic networks) quite quick and easy. The Thevenin’s theorem, as applied to d.c. circuits, may be stated as under: The current flowing through a load resistance RL connected across any two terminals A and B of a linear, active bilateral network is...
669 Words | 3 Pages
• Factors affecting the resistance of a wire
Factors affecting the resistance of a wire Introduction: Resistance is a force, which opposes the flow of an electric current around a circuit. Resistance is measured in Ohms. George Ohm discovered that a circuit sometimes resists the flow of electricity. He called this 'RESISTANCE.' He even came up with a rule for working out the resistance of a circuit, which was: R= V ÷ I V- Volts I- Current R- Resistance Ohms law says the more resistance means more energy is needed for the current to...
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1,210 Words | 7 Pages
• Sample-Formal-Lab Report
TENS 2146 Electric Devices and Measurements Lab 3 Current and Voltage This report was prepared by: L. Wall Fall 2009 Prof. R. Alba-Flores Team Members: J. White, L. Wall Conducted on: September 17, 2009 Submitted on : September 24, 2009 Abstract: In this lab students experimented with light emitting diodes. The student built a basic circuit with two LED's and resistors in parallel. The results showed that the voltage is the same in parallel. The items that were in series had...
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1,523 Words | 6 Pages
• ECT122 Wk2 Assignment - 462 Words
﻿Chapter 3 Ohm’s Law and Power Practice Problems 13. Calculate the minimum acceptable power rating for the resistor in Figure 3.25a. V= 6V, R=120Ω 300 mW 14. Calculate the minimum acceptable power rating for the resistor in Figure 3.25b. V= 8V, R=16Ω 4W 21. Complete the following chart. Current Voltage Resistance Power a.10mA 200 mV 20 Ω 4W b. 500 µA...
462 Words | 3 Pages
• Parallel and Series Combination Circuits
Page 1 of 5 Name: ______________________________ ECET 231 - Circuit Analysis I Lab 6 Series-Parallel DC Circuits Objective: Students successfully completing this lab will accomplish the following objectives: 1. Gain experience analyzing and verifying, by measurements, the characteristics of series-parallel resistive circuits. 2. Increase understanding of the relationship of voltage, current and resistance in a series-parallel circuit 3. Learn to compute currents through the use of...
1,034 Words | 6 Pages
• Electrical Engineering Lab Report
Resistors & Ohm’s Law Abstract: In this lab, students were introduced to the field of electrical engineering. The objectives of the lab were to determine the resistance of a resistor using various methods and to also verify Ohm’s Law. In the lab, the students were instructed to calculate the resistance by using color codes, measuring the resistance using a Digital Multi Meter, calculate the average resistance from 10 voltage and current measurements, and find the graphical...
1,115 Words | 4 Pages
• Proportionality and Superposition Theorems Report
﻿Introduction This experiment focuses on two concepts. These concepts are Proportionality and Superposition theorems. Proportionality is a way to relate two quantities together. This means that when more input is supplied, you get more output which is proportional to the input. The Proportionality Theorem states that the response in a circuit is proportional to the source acting in the circuit. This is also known as Linearity. The proportionality constant (K) relates the input voltage to...
429 Words | 2 Pages
• The Node-Voltage Method of Circuit Analysis
Lab# 1 The Node-Voltage Method of Circuit Analysis By: Abstract This report used KCL and Ohm's law to calculate the node voltages and compare them to the measured node voltages after building the circuit. The calculations were obtained by hand using node analysis. The experiment was simulated on PSpice and the results were verified to hand calculations. The circuit was built in the lab and the results were measured with a digital multi-meter and compared to the calculated values,...
947 Words | 5 Pages
• Filament bulb experiment - 304 Words
Evaluation I think my evidence is reliable because the anomalies in my first results were the same as the ones in my second results. The graph made a straight line with a gradient that gets deeper that is what I predicted. To improve my experiment to make it even more reliable I could use a more accurate ammeter and a larger range of results as well as more checks. The ammeter I use could be more than two decimal places, and I could get a lot of results and put them on one graph...
304 Words | 1 Page
• Resistance Box - 641 Words
| Measurement of Electrical Resistance and Ohm’s Law | Physics Lab 204.001 | | | | Yewande Adeniyi | 9/22/2011 | | PROCEDURE 1. Connect the ammeter A, the voltmeter V, and the power supply PS to the Resistance Box. The basic circuit supply is series with a resistor. To measure the current in the resistor, the ammeter is placed in series. To measure the voltage across the resistor, the voltmeter is placed in parallel. 2. Vary the current through resistor R1 in...
641 Words | 3 Pages
• Investigatory Project - 1762 Words
TLE Electron The electron (symbol: e−) is a subatomic particle with a negative elementary electric charge. An electron has no known components or substructure. It is generally thought to be an elementary particle.[2] An electron has a mass that is approximately 1/1836 that of the proton. The intrinsic angular momentum (spin) of the electron is a half-integer value in units of ħ, which means that it is a fermion. The antiparticle of the electron is called the positron; it is identical to...
1,762 Words | 6 Pages
• Lab Report - 1453 Words
Ohm’s Law II Abstract: The purpose of this experiment is to demonstrate how non-ohmic devices respond on a direct circuit. Furthermore, we also explored their behavior when they were connected in different configurations. In order to accomplished this we used a capacitor, diode, resistor, and battery. We ran a series of experiments that generated graphs and equations, which can explain the relationship between voltage and time for capacitors and diodes. Non-ohmic resistors are also...
1,453 Words | 5 Pages
• How Does the Diameter of a While Affect the Resistance in a Circuit
How Does The Diameter Of Wire Affect The Resistance In A Circuit? Introduction: Some metals such as copper, silver and gold are very good conductors of electricity. This is because they all have only one electron on the outer shell. This means that they need only a tiny amount of energy in order to allow the electron to move. Non-metals, however, do not have free electrons, so even non-metals that only have one electron on their outer shell can still hold onto them tightly. Aim Of The...
1,602 Words | 7 Pages
• Physics LDR - 939 Words
﻿ LIGHT DEPENDENT RESISTANCE INTRODUCTION In the society, some times street lights glow in day time due to any reason. In mines area people face many difficulties due to absence of light in the nights. In frontier and hilly areas, people face many problems due to damaged street lights. For solve above these problems, we create a device in which the lights glow in night and in day time, they off automatically and don't glow. Due to use of it, we can solve above problems and can also save...
939 Words | 3 Pages
• ECT122 W3 ILab 2
﻿ECT 122 Week 3 iLab #2 Parts: Breadboard DC power supply Handheld DMM Test leads Wire 2 - 1.0kΩ resistor 2.2kΩ resistor 3.3kΩ resistor 1. Using the circuit below, calculate the following values. On the circuit drawing, indicate the polarities for each voltage and show the current direction. 0.00133 x = 1.33mA R1 + R2 + R3 + R4 = 1kΩ + 2.2kΩ + 3.3kΩ + 1kΩ = 7500 x 10^3 = 7.5kΩ 1.33mA x 1kΩ = 1.33V 1.33mA x 2.2kΩ = 2.93V 1.33mA x 3.3kΩ = 4.39V 1.33mA x...
279 Words | 2 Pages
• Analysis Of Two And Four Lead Resistance Measurements
﻿Analysis of two and four-lead resistance measurements Johnny Greavu University of Minnesota-Twin Cities September 29, 2014 Introduction We measured the resistance per foot of a wire using setups of both two and four test leads in tandem with a digital voltmeter (DVM) and compared their accuracy. While resistance can be determined by measuring voltage and current separately, it can also be measured more simply and directly using the resistance measuring feature available to some digital...
526 Words | 2 Pages
• What Factors Affect the Current Flowing Through a Wire?
I am going to investigate how the resistance of the wire affects a current flowing through a wire. I know that as resistance changes, current changes, as Ohm's law: I = V/R. If one part of an equation changes, the equal must be done to the opposite side. To detect how resistance affects current, I must first discover what factors affect resistance. These factors are: · Length of the wire  if a wire is longer; there are more particles for electrons to move through, and therefore more...
953 Words | 3 Pages
• ECT122 W6 ILab 1
﻿ECT122 Week 6 iLab #1 1. Define troubleshooting. The process of locating faults in a circuit or system. 2. What is an open circuit? An open circuit is a circuit that has infinite resistance. This results in no current through the open circuit or anything in series with it. It is often referred to as an open. 3. What is the primary symptom of an open circuit? Symptoms of an open circuit include the current through the component drops to zero. The...
465 Words | 2 Pages
• Resistor and Total Resistance - 274 Words
ECT 122 Week 3 iLab #1 Parts: Breadboard DC Power Supply Hand Held DMM Test leads Wire 1.0kΩ resistor 2.2kΩ resistor 3.3kΩ resistor 1. Identify the type of the following circuits as either serial or parallel. 2. List four characteristics of a series circuit. * Resistance: The total resistance is equal to the sum of the individual resistances. * Current: The current at any point in the circuit equals the current at all other points. The value of current depends on the...
274 Words | 2 Pages
• Circuit Analysis of Linear Network and One Nonlinear Element
Circuit Analysis of Linear Network and one Nonlinear Element ETEE3153 Experiment #4 Submitted: September 5, 2005 By, David Scott Lab partner: Blake Griffin Prof. Jack Carter Submitted: 10/27/2005 Microsoft Word OrCAD Pspice student version 9.1 Main Body The purpose of this laboratory experiment is to learn simple techniques for analyzing a circuit with a nonlinear element. It gives details as to what methods to uses when using nonlinear elements. This experiment...
2,406 Words | 13 Pages
• Reverse Engineering Paper - 2103 Words
For our project we decided to disassemble and understand a Memphis 1 Channel Mono Block Amplifier. First we started by disassembling the amp down to the main circuit board. From there we assigned ourselves different components to understand what they were and how they worked inside the amp. We all researched our components and got back together to discuss and figure out the flow of power and operations of the amp worked. A general idea of what the amp does is as follows. Power comes into the...
2,103 Words | 6 Pages
• Circuits Lab Report #1
Lee 1 Kwan Woo Lee Lab Report#1 Measurements in resistive networks and circuit laws laboratory Abstract: The purpose of this lab is to verify the Ohm's Law, Kirchhoff's Voltage and Current Laws. As well as the introduction to the voltage division. The Ohm's Law states that the current through a conductor between two points is directly proportional to the potential difference across the two points (V = IR). The Kirchhoff's Voltage Law states that the directed sum of the electrical...
760 Words | 4 Pages
• To investigate the discharging of a capacitor through a multimeter as voltmeter
﻿Practical 4 Title: To investigate the discharging of a capacitor through a multimeter as voltmeter Objective: To determine the internal resistance of a multimeter Apparatus and Materials: 1. Capacitor 2. Multi-meter 3. Power supply 4. Switch 5. Stop watch 6. Connecting wires Setup : 1 The circuit was constructed as Figure 5-1. 2 Ensure that the positive terminal of the power supply was connected to the positive terminal of the capacitor if an electrolytic capacitor. 3 Initially, switch S...
1,264 Words | 11 Pages
• Resistance of a Wire - 2028 Words
Physics Coursework Objective: My objective in this experiment is to investigate one of the factors that affect the resistance of a piece of wire; the one I am investing is the length at constant temperature. My objective in this experiment is to investigate one of the factors that affect the resistance of a piece of wire. The factor I chose was length. Factors: There our four different things that affect the resistance of a wire: 1. The Length  because the wire is thinner than...
2,028 Words | 6 Pages
• Resistance Coursework - 1205 Words
Resistance coursework Aim: My aim is to find out which factors affect the resistance of wire and how they affect them. Ohm's Law: Ohm's law is also relevant to know of Ohm's Law, which states that the current through a metallic conductor (e.g. wire) at a constant temperature is proportional to the potential difference (voltage). Therefore V ¸ I is constant. This means that the resistance of a metallic conductor is constant providing that the temperature also remains constant....
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1,205 Words | 4 Pages
• Lab Report Physic - 719 Words
Post lab 4. If we increase the temperature of a conductor, its resistance will increase. In a semiconductor, resistance will decrease as temperature increases. Read more: http://wiki.answers.com/Q/What_is_the_effect_of_increasing_temperature_on_resistance#ixzz1u3megHV5 1. Resistors Resistors are the most commonly used component in electronics and their purpose is to create specified values of current and voltage in a circuit. A number of different resistors are shown in the photos....
719 Words | 3 Pages
• ECET wk 1 Lab01
﻿Laboratory Report Cover Sheet DeVry University College of Engineering and Information Sciences Course Number: ECET110 Professor: Laboratory Number: 1 Laboratory Title: Analysis of a Series Circuit using Simulation and Actual Construction Submittal Date: 3/8/2014 Objectives: 1. To construct a series circuit and measure its equivalent resistance. 2. To predict and verify electrical characteristics of a series circuit using Ohm’s Law and Kirchhoff’s Voltage Law. 3....
692 Words | 0 Page
• Neutral Grounding Resistor - 1373 Words
Neutral Grounding Resistors (NGR) for Transformers & Gen. Sets.: NGR is employed in AC distribution networks to limit the fault current which would flow from the transformer or generator neutral star point in the event of an earth fault in the systems. It is used when the neutral of supply transformer is accessible and its own impedance is not enough to limit fault current. The rating of the protection relays within the required time. For Grounding Neutral of Transformer or Generator,...
1,373 Words | 5 Pages
• Practical Investigation：Resistance in Wire - 1390 Words
﻿G10 science By Freya Li Practical Investigation Resistance in Wire Aim: To investigate if the length of wire affects its resistance and find out how the resistance changes when the length of wire increases. Hypothesis: My prediction is that as the length of wire increases, the resistance will also increase. This is because current is the flow of electrons in a circuit and voltage makes the electrons flow through the circuit. The electrons have to collide with the atoms in the wire, which...
1,390 Words | 8 Pages
• ECT122 W2 ILab 3
﻿ECT 122 Week 2 iLab #3 Part 1 Parts: Breadboard DC Power Supply Hand Held DMM Test leads Wire 56kΩ resistor 1. Given the circuit below, use Ohm’s law to determine the total current in the circuit and the voltage across the resistor. 5V My mulitsim of this circuit. 2. Construct the circuit above on the breadboard. Starting at the positive terminal of the +5 V power supply, follow the schematic around to install each component. 3. The first...
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• Lab Report - 340 Words
Voltage Divider Lab Report Table Of Contents 1.0 Introduction The following report consists of test results gathered from the design and construction of a voltage divider. The divider was built with the purpose of reducing the power from 12V to 0V using different combinations of given resistors in a complete circuit. Having a basic understanding of electrical circuits is an essential need even for non-electrical engineers. Mechanical, computer and other engineering disciplines...
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• DC Circuits Introductory Activity
Voltage­ ● an electromotive force or potential difference expressed in volts. Voltage is measured in volts and is represented by the symbol V. http://physics.tutorvista.com/electricity­and­magnetism/ohm­s­law.html Resistance­ ● Resistance is an electrical quantity that measures how the device or material reduces the electric current flow through it. Measured in ohms ​ (Ω) and represented by R. https://www.google.com/search?q=resistance&espv=2&biw=1366&bih=667&source=lnms&tb...
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• Physics Coursework - 2110 Words
GCSE Physics Coursework - Resistance of a Wire Coursework Resistance of a Wire Task To investigate how the resistance of a wire is affected by the length of the wire. Theory What is resistance? Electricity is conducted through a conductor, in this case wire, by means of free electrons. The number of free electrons depends on the material and more free electrons means a better conductor, i.e. it has less resistance. For example, gold has more free electrons...
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• LAB REPORT - 872 Words
﻿Part 2: Safe work with large inductances 1. One of the main hazards of using inductances is electrical energy stored in the magnetic field. If a circuit containing an inductance is interrupted then the stored energy can release through air (forming an arc). This can destroy a switch contact, burn fingers, create other damage. In the circuit of Figure 1, show how to mitigate the risk (pay attention to polarity!). We give the elements in this circuit some simple values for the purpose...
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• How does the length of wire effect resistance
Plan What is a current? Current is the flow of electrons which come from a metal these are called ‘free electrons.’ Elec-trons flow from the negative terminal to the positive terminal. Electrons carry energy around the circuit, they attain their energy from the battery. Current is measured in Amps. What is resistance? Resistance is the opposition to the flow of electric current through a material. Resistance is measured in Ohms. Resistance is calculated by dividing the voltage by the...
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• Sample Paper - 615 Words
ELECTRICITY (CLASS – X) QUESTIONS FOR PRACTICE 1. State the law that governs the strength of the current passing through a metallic conductor when a p.d is applied across its end. Illustrate this law graphically? 2. Why is an ammeter connected in series and voltmeter in parallel in a circuit? 3. In an experiment the current flowing through a resistor and potential difference across it are measured. The values are given below. Show that these values confirm Ohm’s Law and also find the resistance...
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• Electrical Engineering Lab Session
ELECTRICAL ENGINEERING LABORATORY SESSION 1 Title: RESISTOR NETWORKS Name:Richard Lancaster Date: 11th Sep 2010.Student Name: Richard Lancaster. Id No: (09099972) Course: B.Sc. Engineering Science Subject: Electrical Engineering Lecturer: Dr Martin Hayes Objectives: 1. Introductory familiarisation with D.C measurements. 2. Introduction to the use of pSpice as a tool for emulating circuits. pSpice v9.1 can be downloaded from Moodle or via...
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• Design of Electronic Circuits Lab Report
ZEIT 1206 DEC1 Lab Report 1 DC Circuits - Analysis and Design Alexander Glover, z3422512 Abstract DC circuit analysis and design, play a massive role in electrical engineering and without the correct application of theory and practise in unison, nothing can be achieved in a true engineering sense. Engineering requires theory to develop and test constraints while also requiring practical application of theory in order to determine tolerance and practical results for industry purposes. The...
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• Biology - 1689 Words
LAB 4: KIRCHHOFF’S RULES DIY Lab This section is adapted from reference 1. Objective In this experiment, you will experimentally verify Kirchhoff’s rules by measurement and by mathematical analysis. Apparatus (Lab Kit* or NIC Lab) 5 resistors  one 6V battery or power supply (each under 1.5 kΩ each, not all equal)  digital multimeter  12 connecting wires *If you do not have the Lab Kit, you can use equivalent items. Contact your instructor regarding equivalent items to ensure that the...
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• Week 1 Practice Problems
﻿Maria Saavedra ECT122 Week 1 05/07/2014 Chapter 1Chapter 2 Chapter 3 Practice Problems *(Be sure to put the units in; volts, amps, etc.) 1.One coulomb of charge passes a point every 20 seconds. Calculate the value of the current through the point. I=Q/t = 1C/20s = .05C/s= .05 A x10^-3 C = 50mA 2.A total charge of 2.5 × 10-3 C passes a point every 40 seconds. Calculate the value of the current through the point. I=Q/t =0.0025C/40s= 6.25 C/s = 6.25 A 4.A total charge of 50 × 10-3 C passes a...
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• Rc Circuits - 875 Words
RC Circuits •In this presentation, circuits with multiple batteries, resistors and capacitors will be reduced to an equivalent system with a single battery, a single resistor, and a single capacitor. Kirchoff's laws will be stated, and used to find the currents in a circuit. In addition, the equation for the time-constant of an RC circuit will be derived. Ohm's Law  When a battery is connected to a resistor, the battery will cause a current to flow through the resistor. The larger the...
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• Electrical Resistance and Wire - 7106 Words
Introduction The purpose of this investigation is to expose the factors responsible for affecting the resistance of a wire in an electrical circuit. Many factors will have to be investigated prior to experimentation. A prior knowledge of electrical circuits and the factors of resistance will be required. The conclusive objective will be that research on the subject matter is proven by experimentation. Resistance The standard opinion of resistance when electricity is concerned is the...
7,106 Words | 33 Pages
• ECT122 W1 ILab 3
﻿ECT 122 Week 1 iLab #3 Parts: Breadboard Handheld DMM DC power supply Test leads Resistor kit 1. List the functions available on the DM717 handheld digital multimeter (DMM). This meter can measure three basic electrical properties voltage, current and resistance. 2. What is the function of the COM connection? What color lead is placed in this connection? It’s the common ground and is used in all measurements. Black lead is placed in this...
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• Resistance of a Wire Coursework - 1528 Words
The problem with using resistance as a measurement is that it depends not only on the material out of which the wire is made, but also the geometry of the wire. If we were to increase the length of wire, for example, the measured resistance would increase. Also, if we were to decrease the diameter of the wire, the measured resistance would increase. We want to define a property that describes a material's ability to transmit electrical current that is independent of the geometrical factors....
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• Investigating how the length of wire affects the resistance
Planning: Risk Assessment: * I will handle the power supply carefully. * I am going to only use a maximum voltage of 2 volts. * I will be careful when handling the mains equipment. * I will make sure I have a clear space to work in and nothing on the floor around me. In this investigation, I will set up a simple circuit to be able to read the voltage and current when the length of wire changes, so I then can work out the resistance. I will be using constantan wire starting of with 1m...
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• Simple Voltage and Current Measurement
Experiment I Simple Voltage and Current Measurement Objective The objective of this experiment was to measure the Voltage and Current. Upon completion of this experiment I was able to: 1) Set the DC power supply to a specific voltage. 2) Properly connect the voltmeter to measure voltage. 3) Measure current with the ammeter. 4) Measure resistance with the ohmmeter. 5) Determine the accuracy of a given meter reading. Theory The theory...
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• Gumamela - 347 Words
Voltage, electrical potential difference, or an electric tension (denoted ∆V and measured in units of electric potential: volts, or joules per coulomb) is the electric potential difference between two points, or the difference in electric potential energy of a unit test charge transported between two points.[1 An electronic circuit is composed of individual electronic components, such as resistors,transistors, capacitors, inductors and diodes, connected by conductive wires or traces...
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• Science Practical - 539 Words
Science practical report (The relationship between voltage and Current) Aim: To find out how current, voltage and résistance in a electric circuit are related. Hypothesis The reading for both voltmeter and ammeter will have complete different results in relationship to the resistor, voltage and current. That voltmeter will have a higher reading than ammeter. Materials * Power pack * Piece of nidrome * 50 cm long or a resistor * Hear proof mat * 6 connecting wires...
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• Sample Paper 12 Th Class
SAMPLE PAPER-2013 CLASS-XII Subject : Physics Time allowed : 3 hours Maximum Marks : 70 General Instructions : i) All questions are compulsory. ii) Question numbers 1 to 8 are very short answer type questions, carrying one mark each. iii) Question numbers 9 to 18 are short answer type questions , carrying two marks each. iv) Question numbers 19 to 27 are also short answer type questions, carrying three marks each. v) Question numbers 28 to 30 are long answer type...
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• Electrical Resistance and Assignment Print View
MasteringPhysics: Assignment Print View http://session.masteringphysics.com/myct/assignmentPrint?assig... [ Assignment View ] Eðlisfræði 2, vor 2007 25. Current, Resistance, and Electromagnetic Force Assignment is due at 2:00am on Wednesday, February 14, 2007 Credit for problems submitted late will decrease to 0% after the deadline has passed. The wrong answer penalty is 2% per part. Multiple choice questions are penalized as described in the online help. The unopened hint bonus is 2%...
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• blacklight - 1294 Words
Most of us would love to make guyabano fruit juice, puree, tea and shake. This fruit is grown in Central America, sub-Saharan parts of Africa and Southeast Asia. Filipinos believe in the wonders of guyabano. It is known to relieve pain, inflammation, asthma, lowers fever, spasms, heart rate and blood pressure. It is also good for diabetic individuals and its extracts can prevent cancer cells from forming. Viruses, fungi and harmful bacteria can also be prevented when you eat guyabano because of...
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• Resistance of a Wire - 4052 Words
Introduction The resistance of a wire depends on certain factors. Some of these variables are listed below:  Length of wire  Diameter or thickness of wire  Temperature at which wire is kept  The material of which wire is made out of.  The potential difference or voltage.  Humidity  Cross sectional area.  Voltage across circuit All these factors will have to be kept constant except the diameter of the wire whilst doing the experiment to ensure that the investigation is...
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• substitution board - 2445 Words
Project title: Implementation of substitution board using DOT matrix display with 8051 microcontroller Goal - Implementation of dot-matrix led based system using 8051 microcontroller. Objectives - To design the hardware to interface the display to 8051 microcontroller. - To develop the application software using C language. - To simulate the program and verify the result. INTRODUCTION The project substitution board is specially designed to facilitate the substitution in...
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• Exam film - 469 Words
﻿ ELECTRICAL TECHNOLOGY EET 103 Semester 1 Session 2011/2012 1.0 COURSE OUTCOMES CO1: Ability to analyze the DC and AC circuits by using Ohm’s Law, Kirchhoff’s Current Law, Kirchhoff’s Voltage Law, Source Transformation and Thevenin’s theorem. CO2: Ability to calculate and analyze parameters of three phase AC system for Wye and Delta connection. CO3: Ability to explain and apply the basic concept of magnetism and electromagnetism in DC and AC machines. 2.0...
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• rc lab report - 1217 Words
Experiment 13 Charging and Discharging Capacitors 1. Introduction In this experiment you will measure the rates at which capacitors in series with resistors can be charged and discharged. The time constant RC will be found. Charging a capacitor. Consider the series circuit shown in Fig. 1. Let us assume that the capacitor is initially uncharged. When the switch S is open there is of course no current. If the switch is closed at t=0, charges begin to flow and an ammeter will be able...
1,217 Words | 8 Pages
• Auto Matic Street Light
Automatic Street Light Needs no manual operation for switching ON and OFF. When there is need of light it automatically switches ON. When darkness rises to a certain value then sensor circuit gets activated and switches ON and when there is other source of light i.e. day time, the street light gets OFF. The sensitiveness of the street light can also be adjusted. In our project we have used four L.E.D for indication of bulb but for high power switching one can connect Relay (electromagnetic...
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• 3 - 764 Words
﻿Alexandria Hayford Honors Physical Science Instructor Durbin 03/06/15 3.03 Build Your Own Circuit Wokrsheet Part 1: Answer the following questions (20 points) 1. Name and describe the components needed to make a complete circuit. In order to make a complete circuit, you must include a voltage source and an unbroken path. The voltage source is typically a battery, and it is where the electric current is first created by the moving electrons. The unbroken path is generally made out of wire, and...
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• Gsce Physics Coursework - 1140 Words
GCSE Physics Coursework: PLANNING SECTION: Variables: Controlled variable- What you are keeping the same in your experiment to make it a fair test. In this experiment, I will keep the materials used to make the resistors and the temperatures to carry out the results the same throughout the process of the experiment and I will also keep the same thickness of wire. Independent variable- What you are going to change during the experiment to influence your results until you get an...
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• DGFH - 869 Words
FHFHGFKYITJ;LKJHGFKFDLKJDSLKJHGFD.JKHGFDDRFRYRHFYHFDGCVGDVXVBVGDVMotivation 3.2 Nodal analysis. 3.3 Nodal analysis with voltage sources. 3.4 Mesh analysis. 3.5 Mesh analysis with current sources. 3.6 Nodal and mesh analysis by inspection. 3.7 Nodal versus mesh analysis. ￼Circuit Analysis I 2 ￼3.1 Motivation (1) If you are given the following circuit, how can we determine (1) the voltage across each resistor, (2) current through each resistor. (3) power generated by each current source,...
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• The Sotry of My Life - 383 Words
SEKOLAH VOKASIONAL NAKHODA RAGAM BDTVEC SKILLS CERTIFICATE 2 IN COMMUNICATION TECHNOLOGY MEASURE ELECTRICAL QUANTITIES Practical #1 – Measure Electrical Resistance Topic – Measure the Resistance using Analogue & Digital Multimeter Objective – Familiarize and learn how to use Multimeter Equipment/Tools * Resistor -10 * Digital Multimeter * Analogue Multimeter * Breadboard Circuit Diagram Block Diagram...
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• Current Electricity Term Paper
Current electricity: 1) Give an equation to calculate resistance. 2) Give the meaning and the unit of each symbol. 3) Complete the following table Resistance (Ω) | Current strength (A) | Potential difference (v) | | 12 | 38 | | 0.4 | 32 | 75 | 96 | | 36 | 15 | | 75 | | 0.25 | 135 | | 27 | 4) An electric frying pan is connected to a 220V power point. If the current in the element is 12 A, calculate the resistance of the element 5) What will the...
814 Words | 7 Pages
• ECT122 Wk5 ILab 2
﻿ECT 122 Week 5 iLab #2 Parts: Breadboard DC power supply Handheld DMM Test leads Wire 100 Ω resistor, 220 Ω resistor, 330 Ω resistor, 470 Ω resistor 1. Calculate the quantities listed. IT:_46.72mA___ I1A:_28.03mA___ I2A:__18.68mA___ I3A:__38.31mA___ I4A:__8.15mA___ VR1:__6.16V___ VR2:__6.16V___ VR3:__3.83V___ VR4:__3.83V___ Ra= R1//R2= 220Ω//330Ω= 132Ω Rb= R3//R4= 100Ω//470Ω= 82.45Ω= 82Ω Rt= Ra+Rb= 132Ω+82Ω= 214Ω It= Vs/Rt= 10V/214Ω= 0.04672 x...
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• Magnetism - 1683 Words
Student Exploration Circuits Vocabulary ammeter, circuit, current, electron, ohmmeter, Ohms law, parallel circuit, resistance, resistor, series circuit, voltage Prior Knowledge Questions (Do these BEFORE using the Gizmo.) Strings of holiday lights can be designed in one of two ways. In some strings of lights, each light is connected to the others along a single wire (in series). In others, each light is attached to its own wire (in parallel). Suppose a single light bulb burns out. How do you...
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• Thevenin's Theorem La Report,
EXPERIMENT NO. 10 Thevenin’s Theorem Objectives: 1. To verify the Thevenin’s theorem through an experiment. 2. To find the Thevenin’s resistance RTH by various methods and compare values. Equipment: Resistors, DMM, breadboard, DC power supply, and connecting wires. Theory: Thevenin theorem states that any linear two-terminal circuit can be replaced by an equivalent circuit consisting of a voltage source VTH in series with a resistance RTH where * VTH is the open-circuit voltage...
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• CB Characteristics Of A Transistor 3
﻿ Experiment No: 9 Date: COMMON BASE CHARACTERISTICS OF A TRANSISTOR Aim: To plot the input and output characteristics of an NPN transistor in common base configuration and calculate various parameters. Components and Equipments Required: Transistor, voltmeters, ammeters, rheostats, dc sources, breadboard and CRO. Theory: In CB configuration, the base of a transistor is common to input and output circuits. Input voltage is applied between emitter and base and output is taken across...