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 showed down because of interactions with the atoms of the wire. The higher the resistance, the less the current for a given voltage V. Resistance is defined as;

Where R is the resistance of a wire or any other device, V is the potential difference across the device and I is the current that flows through it. This result is known as Ohm’s law. In this experiment by using equipment circuit experiment board and resistor, we will experimentally verify the Ohm’s Law.

PROCEDURE:
* I was given a resistor. First of all, I determined the resistance of each resistor from the color codes by using method defined in and wrote my results into the Table. * I constructed the circuit by using circuit experimental board, DC power supply the resistors. * I adjusted the voltage of DC power supply to a suitable value and kept it constant. Also measured the current and the voltage by using the suitable scale and wrote my results into the table. * I choose one of the resistors and connected the circuits given. * Finally I plotted the graph voltages versus current. And calculated the resistance from the graph.

R = 150 Ω
Voltage (v)| Current (mA)|
1.5| 10.16|
5.18| 35.6|
12.59| 86.8|

...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...

...LAB 01
Measurement of Resistance and Ohm’sLaw
Section : 04
Instructor’s Name : BERNA DÜNDAR
Experiment Date : 26/02/2014
Submission Date : 05/03/2014
Measurement of Resistance and Ohm’sLaw
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...

...OHM’SLAW
INTRODUCTION
Ohm'slaw 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...

...Opposition to AC, but not to DC, is a property known as reactance. In an AC circuit, the resistance and reactance combine vectorially to yield impedance.
Ohm'sLaw is the mathematical relationship among electric current, resistance, and voltage. The principle is named after the German scientist Georg Simon Ohm.
In direct-current (DC) circuits, Ohm'sLaw is simple and linear. Suppose a resistance having a value of R ohms carries a...

...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...

...CONFIRMING OHM’SLAW
BY ALEX KUCHMENKO
9.1
Aim – To Confirm Ohm’sLaw 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...

...Conclusion
Ohm'sLaw 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...

...New York City College of Technology
Ohm’slaw & 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’slaw 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....