3. Series and parallel circuits serve different purposes in households 1. Identify the difference between series and parallel circuits Series is when the components line up after one another, thus there is only 1 path. In parallel there are multiple paths.

Advantages of using parallel circuitry over series circuitry in household wiring include: * You can have some devices on and others off at the same time. * If one device fails the others still work.

* All devices receive the highest possible voltage.
2. Compare parallel and series circuits in terms of voltage across components and current through them In a series circuit voltage is divided evenly throughout the components, with current being the same max current throughout all the components. In a parallel circuit it is opposite, voltage is the same max voltage throughout the components, with current being divided evenly throughout the components.

In the series circuit each light will be half the brightness than if there was only one. However in the parallel circuit the lights have the same brightness no matter how many are added. 3. Identify uses of ammeters and voltmeters

Ammeters are used to measure current. Voltmeters are used to measure voltage. To measure the voltage of a component the voltmeter is placed in parallel with the component. To measure the current passing through a component, the ammeter is placed in series with the component. When an ammeters work best if they have a low resistance. And voltmeters work best if they have a high resistance. 4. Explain why ammeters and voltmeters are connected differently in a circuit Voltage is sometimes called potential difference. So it is measuring the difference between two points, so is must be placed in parallel so that it can measure the difference between before and after that component. Current is a measure of the rate at which charge flows, and therefore must be connected in series. Ammeters have a low resistance. In...

...Experiment: Series and ParallelCircuits
Date Given: January 28, 2013
AIM: To investigate the circuits to tell whether the resistors are in parallel or in series also to determine the internal resistance of a 1.5V cell.
THEORY:
In this experiment it was expected of the experimenter to have a basic knowledge of circuits in both aspects theoretically and practically. A basiccircuit comprises of a cell or power supply (some electric driving force) a load (some component that will use current) and connecting wires (these should be good conductors of electricity), as seen below.
Requirements of a circuit to function are it should be a closed circuit (a closed conducting path from negative to positive) also there has to be some potential difference as this causes the electrons to flow along the metal. This lab specifically investigates seriescircuits, parallelcircuits and cells.
A seriescircuit has the same current flowing through all resistors adjacent to each other (in series), I=I1=I2…et cetera. The total potential difference (V) is equal to the sum of its individual potential differences, V=V1+V2. The individual potential differences are directly proportional to individual resistances, meaning each resistor in...

...Experiment 8: Series and ParallelCircuit Elements
Laboratory Report
Frenzyl Espinola, Anna Fermin, Loren Gabayeron, Kristal Fernandez
Department of Math and Physics
College of Science, University of Santo Tomas
España, Manila Philippines
Abstract
The experiment is about the elements of series and parallelcircuits. The laws on series and parallel resistors, as well as the color code for resistors were observed to calculate the total resistance. The proper connection for ammeter and voltmeter was also conducted and the readings for the voltage and current were obtained.
1. Introduction
The objectives of the experiment are to determine the resistance of a resistor based on its color code and to verify the laws on series and parallel resistors, as well as the cells. Some practical applications of these types of circuits are observable in our daily lives. An example of seriescircuit is the Christmas lights. If any one of the bulbs is missing or burned out, no current will flow and none of the lights will go on. On the other hand, an example of parallelcircuits is the wiring system in our houses. If one of the lights burns out, current can still flow through the rest of the lights and appliances.
2. Theory
Total Resistance:
RT=VTIT...

...Lab 4 – Series and Parallel DC Circuits
PHY2049L
Friday Lab 1:00
8th February, 2013
Introduction
The purpose of this lab experiment is to test the predictions for current, voltage and resistance of the relationships of parallel and seriescircuits. The procedures strive to prove that the theoretical outcomes are consistent with the corresponding measured results. After setting up the closed circuits we want to test our own results into the equations and conclude if they are true.
In the same circuit, there are specific equations that show how current, resistance and voltage behave. The equations or predictions differ in the type of circuit the components are connected or enclosed in. The two types of circuits we will look at in this lab are series and parallelcircuits. Circuit components are in series when they are connected one after the other with only one path for current to flow. The following equations are true of a set of resistors in series.
The current is the same in all of the resistors and the connections between them.
I_in= I_12= I_23= I_out (1)
The voltage across the whole set is equal to the sum of Voltages across each individual...

...problems in series and parallel connection and the resistance of a material. Ohm's Law shows the relationship between the voltage (V), current (I) and resistance (R). It can be written in three ways:
V = I × R or I =V/R or R = V/I
The resistance (R) of a material depends on
Its length,
cross-sectional area,
The resistivity, and
Resistance also depends on temperature, usually increasing as the temperature increases. For reasonably small changes in temperature, the change in resistivity, and therefore the change in resistance, is proportional to the temperature change.
Circuits consisting of just one battery and one load resistance are very simple to examine, but they are not usually found in practical applications. We find circuits when two or more constituents are connected together.
We have two basic ways of connecting circuit components:
Seriesparallel
1. SeriesCircuit – is an electric circuit having its parts connected serially (without branching). It has only one path for the charges to move along and the charges must move in “Series” which means first going to one resistor then the next. Here if one of the circuits is broken down, then no charge will move through the circuit because there is only one path. Which is if one bulb burned out the...

...Voltage and Current in Series and ParallelCircuitsPurpose:
The purpose of this lab was to investigate and prove Kirchhoff’s voltage and current laws, through the use of parallel and seriescircuits. In a parallelcircuit, the voltages at different loads remain constant with themselves and the battery, where the current atdifferent loads add up to equal the total current of the battery. A seriescircuit proves the opposite; current remains constant, and the voltages being used at different loads add up to total voltage of the battery.
Procedure:
1. Two loads were attached together by a copper wire and to two batteries to create a seriescircuit, as seen in figure 1.
2. The multimeter was attached to the two batteries with the black wire to the negative end of the battery, and the red wire to the positive end. This device was used to measure voltage and current in the seriescircuit.
3. Steps 1-2 were repeated using 3 loads.
4. The 2 loads previously used were rearranged to form a parallelcircuit, as seen in figure 2.
5. The multitmeter was used to measure voltage and current in the parallelcircuit.
6. Steps 4-5 were...

...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-parallelcircuit 3. Learn to compute currents through the use of voltmeter readings. A formal lab report on lab exercises 5, and 6 will be required. Keep your results from this lab exercise. They will be used as part of the formal report. The formal lab report will be due one week after lab 6 is performed. Digital Multimeter (DMM), connecting leads, alligator clips, breadboard, jumper wires, LEDs, resistors (100 Ω, 1 kΩ).
Lab Report:
Equipment:
Procedure: In a circuit in which the components are soldered to a circuit board, direct measurement of current can be a nuisance. Doing so requires desoldering a connection, measuring the current in the circuit gap, and re-soldering the connection. If the circuit contains a sufficient number of resistors, it may be possible to use a voltmeter and some simple calculations using Ohm’s law to determine...

...Title: Resistors in Series and Parallel
Date: 17/7/05
Aim:
The aim of this experiment is to compare the predicted and actual resistance in a circuit of resistor combinations in series and in parallel.
Background:
A resistor is an electrical component/device that has electrical resistance. Resistors can be used in electric circuits for protection of components, voltage division or current control. In an ideal resistor the resistance remains constant regardless of the applied voltage or current, or the rate of change in the current (Resistor, 2005, Wikipedia).
Electrical resistance is a measure of the ability of an object to oppose the passage of an electric current. The electrical resistance of an electrical component can be found by using Ohm's law. Ohm's law states that the potential difference (voltage) between the ends of a conductor (e.g. a resistor) and the current flowing through the conductor are proportional at a given temperature (Storen & Martine, 2000, p221-226). This law can be written as: R=V .
I
The SI unit used for electrical resistance is an ohm. An electrical device that has an electrical resistance of 1 ohm will cause a current of 1 amp to flow through it if a voltage of 1V is passed through it.
From previous scientific research it has been determined that the general law for resistors in series is: Rseries = R1 + R2 + R3+Rn
It has also been...

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