Capacitors & RC Circuits

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "Capacitors & RC Circuits"

Transcription

1 Capacitors & C Circuits Name: EQUIPMENT NEEDED: Circuits Experiment Board One D-cell Battery Wire leads Multimeter Capacitors(100 F, 330 F) esistors(1k, 4.7k ) Logger Pro Software, ULI Purpose The purpose of this lab is to determine how capacitors behave in -C circuits. The manner in which capacitors combine is also studied. Figure 1 A B C esistor Capacitor "Switch" V + - Procedure 1. Connect the circuit shown in Figure 1, using a 4.7 k resistor and a 330 F capacitor. Use one of the spring clips as a "switch" as shown. With the "switch" OPEN, connect the multimeter so that the black "ground" lead is on the side of the capacitor that connects to the negative terminal of the battery and set the meter for 2 volt, dc mode. 2. Close the "switch" and observe the voltage readings on the multimeter. Describe how the voltage changes (is it increasing or decreasing, is it changing at a constant rate, etc). UNCG P&A PHY212 L Page 1

2 Make a graphical sketch that shows how you think the voltage changed with time. 3. If you now open the "switch", the voltage across the capacitor should remain at its present value (it may drop slowly due to leakage). This indicates that the charge that accumulated on the two plates of the capacitor (remember that q = CV) has no way to flow from one plate to the other to neutralize the capacitor (since the circuit is an open circuit). 4. Connect a wire from point A to point C and observe the multimeter. Describe how the voltage changes, as you did in Step 2. What is happening to the charge on the capacitor? 5. We can say that you have discharged the capacitor through the resistor. To make sure it is fully discharged, connect a wire from point B to point C. Why does this fully discharge it? 6. epeat Steps 2 through 4, until you have a good feeling for the process of charging and discharging a capacitor through a resistor. efine your descriptions and sketches as necessary and, finally, check your results with the instructor. 7. Before connecting the computer, disconnect the multimeter from across the capacitor and measure the battery voltage directly ("switch" open) and record it in the space below. Multiply it by and by and record the results in the spaces (include the units). = = = UNCG P&A PHY212 L Page 2

3 Preparation for using the computer 8. Unplug all sensor inputs from the ULI box and plug the voltage probe connector into CH 1. Turn on the ULI box, the computer, and the display monitor in that order. 9.un the program Logger Pro. Change the vertical scale to 0.1 to Click the Experiment tab, click Data Collection and adjust the Sampling ate to 20 samples/sec. 10. Connect the two alligator clips of the voltage probe across the capacitor. The red clip connects to the + side and the black clip to the side. You can remove the multimeter. 11. Click on the Collect button. This will start data acquisition. As soon as you see points being plotted on the screen, close the "switch" (complete the circuit). You should see a curve representing a gradually increasing voltage that is similar to what you observed with the multimeter in Step 2. How closely does it resemble your sketch? If there is little or no resemblance, explain why. 12. After you have obtained an acceptable graph, click Analyze tab, find and click Examine in the popup menu, and determine the time interval from when you closed the "switch" until the voltage reached Enter your results in Table Obtain a graph of the voltage across the discharging capacitor. With the capacitor fully charged click the Start button, then open the "switch" to disconnect the battery, and connect a wire from point A to point C. This graph should resemble your sketch in Step 4. The initial voltage should agree with your value for. 14. After you have obtained an acceptable graph, click Analyze tab, find and click Examine in the popup menu, and determine the time interval from when you connected points A and C until the voltage reached Enter your results in Table epeat Steps 11 through 14 for the different capacitor (100 F and 330 F) and resistor (1 k, 4.7 k) combinations. Print out one graph for the charging process and one for the discharging process for a combination of a resistor and a capacitor. Entitle the graphs and put the names of your group members on it. 16. Compute the theoretically expected values for the characteristic times of the two -C circuits for the values of and C used and enter them in the Table 1. UNCG P&A PHY212 L Page 3

4 Trial esistance Capacitance t charge t discharge t theoretical Table 1 Capacitors in combination 17. epeat Steps 11 through 14, but with the 4.7 k resistor in series with the series combination of the 100 F and 330 F capacitors. ecord your results in Table epeat Steps 11 through 14, but with the 4.7 k resistor in series with the parallel combination of the 100 F and 330 F capacitors. (You may need to increase the time axis.) ecord your results in Table Compute the theoretically expected values for the characteristic times of the two -C circuits for the values of and C (series and parallel combination) used and enter them in the Table 2. Type of combination t charge t discharge t theoretical Capacitors in series Capacitors in parallel Discussion Table 2 1. What is the significance of the numbers and 0.368? 2. Do your charging and discharging times agree with the theoretical predictions? If not, explain why and if necessary repeat the experiments or theoretical calculations. 3. What is the effective capacitance of three capacitors connected in parallel? 4. What is the effective capacitance of three capacitors connected in series? UNCG P&A PHY212 L Page 4

5 HOMEWOK 1. If the capacitor is initialy uncharged, calculate the time after the switch is closed necessary for it to acquire 63.2% of its final charge in this circuit? = 30 volts = 500 k C = 35 F C 2. If the capacitors are initialy uncharged, calculate the time after the switch is closed necessary for C 1 to acquire 63.2% of its final charge in this circuit? = 30 volts = 500 k C 1 = 10 F C 2 = 20 F C 3 = 30 F C 1 C 2 C 3 3. Switch S has been connected to the battery for a very long time. If S is then switched as shown calculate the time necessary for C 1 to have a charge of 36.8% of its initial charge in this circuit? = 30 volts = 500 k C 1 = 10 F C 2 = 20 F C 3 = 30 F C 1 C 2 C 3 S UNCG P&A PHY212 L Page 5

Kirchhoff s Voltage Law and RC Circuits

Kirchhoff s Voltage Law and RC Circuits Kirchhoff s oltage Law and RC Circuits Apparatus 2 1.5 batteries 2 battery holders DC Power Supply 1 multimeter 1 capacitance meter 2 voltage probes 1 long bulb and 1 round bulb 2 sockets 1 set of alligator

More information

Discharge of a Capacitor

Discharge of a Capacitor Discharge of a Capacitor THEORY The charge Q on a capacitor s plate is proportional to the potential difference V across the capacitor. We express this with Q = C V (1) where C is a proportionality constant

More information

Name: Lab Partner: Section:

Name: Lab Partner: Section: Chapter 6 Capacitors and RC Circuits Name: Lab Partner: Section: 6.1 Purpose The purpose of this experiment is to investigate the physics of capacitors in circuits. The charging and discharging of a capacitor

More information

RC Circuits and The Oscilloscope Physics Lab X

RC Circuits and The Oscilloscope Physics Lab X Objective RC Circuits and The Oscilloscope Physics Lab X In this series of experiments, the time constant of an RC circuit will be measured experimentally and compared with the theoretical expression for

More information

Experiment: Series and Parallel Circuits

Experiment: Series and Parallel Circuits Phy203: General Physics Lab page 1 of 6 Experiment: Series and Parallel Circuits OBJECTVES MATERALS To study current flow and voltages in series and parallel circuits. To use Ohm s law to calculate equivalent

More information

Experiment 9 ~ RC Circuits

Experiment 9 ~ RC Circuits Experiment 9 ~ RC Circuits Objective: This experiment will introduce you to the properties of circuits that contain both resistors AND capacitors. Equipment: 18 volt power supply, two capacitors (8 µf

More information

Lab 5 RC Circuits: Charge Changing in Time Observing the way capacitors in RC circuits charge and discharge.

Lab 5 RC Circuits: Charge Changing in Time Observing the way capacitors in RC circuits charge and discharge. Print Your Name Lab 5 RC Circuits: Charge Changing in Time Observing the way capacitors in RC circuits charge and discharge. Print Your Partners' Names Instructions October 15, 2015October 13, 2015 Read

More information

Ohm s Law. Electrical Quantity Description Unit Water Analogy Voltage or Potential Difference

Ohm s Law. Electrical Quantity Description Unit Water Analogy Voltage or Potential Difference Ohm s Law Experiment 25 The fundamental relationship among the three important electrical quantities current, voltage, and resistance was discovered by Georg Simon Ohm. The relationship and the unit of

More information

Resistor-Capacitor (RC) Circuits

Resistor-Capacitor (RC) Circuits Resistor-Capacitor (RC) Circuits Introduction In this second exercise dealing with electrical circuitry, you will work mainly with capacitors, which are devices that are used to store charge for later

More information

Basic DC Circuits. Electrical Quantity Description Unit Water Analogy Voltage or Potential Difference

Basic DC Circuits. Electrical Quantity Description Unit Water Analogy Voltage or Potential Difference Basic DC Circuits Current and voltage can be difficult to understand, because the flow of electrons and potential differences cannot be observed by the unaided human eye. To clarify these terms, some people

More information

Experiment: RC Circuits

Experiment: RC Circuits Phy23: General Physics III Lab page 1 of 5 OBJETIVES Experiment: ircuits Measure the potential across a capacitor as a function of time as it discharges and as it charges. Measure the experimental time

More information

PHYS 2426 Engineering Physics II (Revised July 7, 2011) AC CIRCUITS: RLC SERIES CIRCUIT

PHYS 2426 Engineering Physics II (Revised July 7, 2011) AC CIRCUITS: RLC SERIES CIRCUIT PHYS 2426 Engineering Physics II (Revised July 7, 2011) AC CIRCUITS: RLC SERIES CIRCUIT INTRODUCTION The objective of this experiment is to study the behavior of an RLC series circuit subject to an AC

More information

Capacitors. Evaluation copy

Capacitors. Evaluation copy Capacitors Computer 24 The charge q on a capacitor s plate is proportional to the potential difference V across the capacitor. We express this relationship with q V =, C where C is a proportionality constant

More information

PHY 101 Lab 7 on Electric circuits: Direct current circuits Your name: Other team members:

PHY 101 Lab 7 on Electric circuits: Direct current circuits Your name: Other team members: PHY 101 Lab 7 on Electric circuits: Direct current circuits Your name: Other team members: Goals: To explore the basic principles of electric circuits, and how to measure them. Materials: Electrical resistors

More information

DC Circuits (Combination of resistances)

DC Circuits (Combination of resistances) Name: Partner: Partner: Partner: DC Circuits (Combination of resistances) EQUIPMENT NEEDED: Circuits Experiment Board One Dcell Battery Wire leads Multimeter 100, 330, 1k resistors Purpose The purpose

More information

PHYSICS LAB. Capacitor. Date: GRADE: PHYSICS DEPARTMENT JAMES MADISON UNIVERSITY. Revision November 2002. Capacitor 21

PHYSICS LAB. Capacitor. Date: GRADE: PHYSICS DEPARTMENT JAMES MADISON UNIVERSITY. Revision November 2002. Capacitor 21 PHYSICS LAB Capacitor Printed Names: Signatures: Date: Lab Section: Instructor: GRADE: PHYSICS DEPARTMENT JAMES MADISON UNIVERSITY Revision November 2002 Capacitor 21 Blank page Capacitor 22 CHARGING AND

More information

RC Circuit (Power amplifier, Voltage Sensor)

RC Circuit (Power amplifier, Voltage Sensor) Object: RC Circuit (Power amplifier, Voltage Sensor) To investigate how the voltage across a capacitor varies as it charges and to find its capacitive time constant. Apparatus: Science Workshop, Power

More information

PHYS 2426 Engineering Physics II EXPERIMENT 5 CAPACITOR CHARGING AND DISCHARGING

PHYS 2426 Engineering Physics II EXPERIMENT 5 CAPACITOR CHARGING AND DISCHARGING PHYS 2426 Engineering Physics II EXPERIMENT 5 CAPACITOR CHARGING AND DISCHARGING I. OBJECTIVE: The objective of this experiment is the study of charging and discharging of a capacitor by measuring the

More information

The Nerve as a Capacitor

The Nerve as a Capacitor HPP Activity 72v1 The Nerve as a Capacitor Exploration - How Does a Neuron Transmit a Signal? Electrical processes are essential to the working of the human body. The transmission of information in the

More information

Physics 2306 Experiment 7: Time-dependent Circuits, Part 1

Physics 2306 Experiment 7: Time-dependent Circuits, Part 1 Name ID number Date Lab CRN Lab partner Lab instructor Objectives Physics 2306 Experiment 7: Time-dependent Circuits, Part 1 To study the time dependent behavior of the voltage and current in circuits

More information

Storing And Releasing Charge In A Circuit

Storing And Releasing Charge In A Circuit Storing And Releasing Charge In A Circuit Topic The characteristics of capacitors Introduction A capacitor is a device that can retain and release an electric charge, and is used in many circuits. There

More information

CAPACITANCE IN A RC CIRCUIT

CAPACITANCE IN A RC CIRCUIT 5/16 Capacitance-1/5 CAPACITANCE IN A RC CIRCUIT PURPOSE: To observe the behavior of resistor-capacitor circuit, to measure the RC time constant and to understand how it is related to the time dependence

More information

EXPERIMENT 6 CHARGE SHARING BY CAPACITORS

EXPERIMENT 6 CHARGE SHARING BY CAPACITORS 60 6- I. THEORY EXPERIMENT 6 HARGE SHARING BY APAITORS The purpose of this experiment is to test the theoretical equations governing charge sharing by capacitors and to measure the capacitance of an "unknown"

More information

21 Lab 5: Series and Parallel Circuits

21 Lab 5: Series and Parallel Circuits 21 Lab 5: Series and Parallel Circuits Components in an electrical circuit are in series when they are connected one after the other, so that the same current flows through both of them. Components are

More information

Ohm s Law. 1 Object. 2 Apparatus. 3 Theory. To study resistors, Ohm s law, linear behavior, and non-linear behavior.

Ohm s Law. 1 Object. 2 Apparatus. 3 Theory. To study resistors, Ohm s law, linear behavior, and non-linear behavior. Ohm s Law Object To study resistors, Ohm s law, linear behavior, and non-linear behavior. pparatus esistors, power supply, meters, wires, and alligator clips. Theory resistor is a circuit element which

More information

Capacitors. Goal: To study the behavior of capacitors in different types of circuits.

Capacitors. Goal: To study the behavior of capacitors in different types of circuits. Capacitors Goal: To study the behavior of capacitors in different types of circuits. Lab Preparation A capacitor stores electric charge. A simple configuration for a capacitor is two parallel metal plates.

More information

GENERAL SCIENCE LABORATORY 1110L Lab Experiment 6: Ohm s Law

GENERAL SCIENCE LABORATORY 1110L Lab Experiment 6: Ohm s Law GENERAL SCIENCE LABORATORY 1110L Lab Experiment 6: Ohm s Law OBJECTIVES: To verify Ohm s law, the mathematical relationship among current, voltage or potential difference, and resistance, in a simple circuit.

More information

Electric Circuits II

Electric Circuits II Electric Circuits II Experiment 4: Resistances in Circuits Equipment needed: - AC/DC Electronic Lab Board: Resistors - Multimeter Purpose The purpose of this lab is to begin experimenting with the variables

More information

E X P E R I M E N T 7

E X P E R I M E N T 7 E X P E R I M E N T 7 The RC Circuit Produced by the Physics Staff at Collin College Copyright Collin College Physics Department. All Rights Reserved. University Physics II, Exp 7: The RC Circuit Page

More information

LAB 5 - CAPACITORS AND RC CIRCUITS(TPL2)

LAB 5 - CAPACITORS AND RC CIRCUITS(TPL2) LAB 5 - CAPACITORS AND RC CIRCUITS(TPL2) Objectives To define capacitance. To discover how the charge on a capacitor and the electric current change with time when a charged capacitor is placed in a circuit

More information

P150A Experimental Lab #7 Ohm s Law (Ver A 10/12)

P150A Experimental Lab #7 Ohm s Law (Ver A 10/12) Ohm s Law The fundamental relationship among the three important electrical quantities current, voltage, and resistance was discovered by Georg Simon Ohm. The relationship and the unit of electrical resistance

More information

Lab 5: Simple Electrical Circuits

Lab 5: Simple Electrical Circuits Lab 5: Simple Electrical Circuits Introduction: In this laboratory you will explore simple DC (direct current) electrical circuits. The primary goal of the lab will be to develop a model for electricity.

More information

LAB 4: CAPACITORS AND RC CIRCUITS

LAB 4: CAPACITORS AND RC CIRCUITS 1 Name Date Partner(s) OBJECTIVES LAB 4: CAPACITORS AND RC CIRCUITS! To define capacitance and to learn to measure it with a digital multimeter.! To discover how the capacitance of conducting parallel

More information

Lab 9: Energy Conservation in Circuits & Charge on a Capacitor

Lab 9: Energy Conservation in Circuits & Charge on a Capacitor Part (1) Energy Conservation in Circuits OBJECTIVES In this part of the lab you will Write the energy conservation equation (loop rule) for several pairs of circuits Predict the relation between the currents

More information

Maximum value. resistance. 1. Connect the Current Probe to Channel 1 and the Differential Voltage Probe to Channel 2 of the interface.

Maximum value. resistance. 1. Connect the Current Probe to Channel 1 and the Differential Voltage Probe to Channel 2 of the interface. Series and Parallel Circuits Computer 23 Components in an electrical circuit are in series when they are connected one after the other, so that the same current flows through both of them. Components are

More information

Charge and Discharge of a Capacitor

Charge and Discharge of a Capacitor Charge and Discharge of a Capacitor INTRODUCTION Capacitors 1 are devices that can store electric charge and energy. Capacitors have several uses, such as filters in DC power supplies and as energy storage

More information

Parallel Plate Capacitor

Parallel Plate Capacitor Parallel Plate Capacitor Capacitor Charge, Plate Separation, and Voltage A capacitor is used to store electric charge. The more voltage (electrical pressure) you apply to the capacitor, the more charge

More information

Electric Circuits II. Physics 133 Experiments Electric Circuits II 1

Electric Circuits II. Physics 133 Experiments Electric Circuits II 1 Physics 133 Experiments Electric Circuits II 1 Electric Circuits II GOALS To examine Ohm's Law: the pivotal relationship between voltage and current for resistors To closely study what current does when

More information

Capacitors. V=!f_. Figure 1

Capacitors. V=!f_. Figure 1 Computer Capacitors 24 The charge q on a capacitor's plate is proportional to the potential difference V across the capacitor. We express this relationship with V=!f_ c where C is a proportionality constant

More information

Name: Partner: Date: RC Circuit Analysis Lab Experiment t RC

Name: Partner: Date: RC Circuit Analysis Lab Experiment t RC Name: Partner: Date: RC Circuit Analysis Lab Experiment t RC VC () t = VS + ( VC, initial VS ) e ε A 0 q C = C = τ = ReqC d V 1. Solve the V C (t) equation above for t. 2. Solve the V C (t) equation above

More information

Lab E1: Introduction to Circuits

Lab E1: Introduction to Circuits E1.1 Lab E1: Introduction to Circuits The purpose of the this lab is to introduce you to some basic instrumentation used in electrical circuits. You will learn to use a DC power supply, a digital multimeter

More information

Resistance and Ohm s Law - MBL

Resistance and Ohm s Law - MBL Resistance and Ohm s Law - MBL In this experiment you will investigate different aspects of Ohm s Law, which relates voltage, current, and resistance. A computer will be used to collect, display, and help

More information

R C DMM. b a. Power Supply. b a. Power Supply DMM. Red + Black - Red + Black -

R C DMM. b a. Power Supply. b a. Power Supply DMM. Red + Black - Red + Black - Sample Lab Report - PHYS 231 The following is an example of a well-written report that might be submitted by a PHYS 231 student. It begins with a short statement of what is being measured, and why. The

More information

Lab 5 RC Circuits. What You Need To Know: Physics 226 Lab

Lab 5 RC Circuits. What You Need To Know: Physics 226 Lab Lab 5 R ircuits What You Need To Know: The Physics In the previous two labs you ve dealt strictly with resistors. In today s lab you ll be using a new circuit element called a capacitor. A capacitor consists

More information

Ch 18 Direct Current Circuits. concept #2, 5, 10, 12, 13, 23 Problems #1, 5, 6, 11, 17, 25, 31, 32, 33, 35, 36, 37

Ch 18 Direct Current Circuits. concept #2, 5, 10, 12, 13, 23 Problems #1, 5, 6, 11, 17, 25, 31, 32, 33, 35, 36, 37 Ch 18 Direct Current Circuits concept #2, 5, 10, 12, 13, 23 Problems #1, 5, 6, 11, 17, 25, 31, 32, 33, 35, 36, 37 currents are maintained by a source of emf (battery, generator) Sources of emf act as charge

More information

Digital Multimeter Guide Mastech M9803R

Digital Multimeter Guide Mastech M9803R Mastech M9803R Version 2008-Jan-1 Dept. of Electrical & Computer Engineering Portland State University Copyright 2008 Portland State University 1 Basic Information This guide provides basic instructions

More information

The RC Circuit. Pre-lab questions. Introduction. The RC Circuit

The RC Circuit. Pre-lab questions. Introduction. The RC Circuit The RC Circuit Pre-lab questions 1. What is the meaning of the time constant, RC? 2. Show that RC has units of time. 3. Why isn t the time constant defined to be the time it takes the capacitor to become

More information

Evaluation copy. Ohm s Law. Computer

Evaluation copy. Ohm s Law. Computer Ohm s Law Computer 22 The fundamental relationship among the three important electrical quantities current, voltage, and resistance was discovered by Georg Simon Ohm. The relationship and the unit of electrical

More information

Teacher s Guide - Activity P50: RC Circuit (Power Output, Voltage Sensor)

Teacher s Guide - Activity P50: RC Circuit (Power Output, Voltage Sensor) Teacher s Guide - Activity P50: RC Circuit (Power Output, Voltage Sensor) Concept DataStudio ScienceWorkshop (Mac) ScienceWorkshop (Win) Circuits P50 RC Circuit.DS (See end of activity) (See end of activity)

More information

Preview of Period 12: Electric Circuits

Preview of Period 12: Electric Circuits Preview of Period 2: Electric Circuits 2. Voltage, Current, and esistance How are voltage, current, and resistance related? 2.2 esistance and Voltage of esistors in Connected in Series How does current

More information

How Does it Flow? Electricity, Circuits, and Motors

How Does it Flow? Electricity, Circuits, and Motors How Does it Flow? Electricity, Circuits, and Motors Introduction In this lab, we will investigate the behavior of some direct current (DC) electrical circuits. These circuits are the same ones that move

More information

Capacitance. Apparatus: RC (Resistor-Capacitor) circuit box, voltmeter, power supply, cables

Capacitance. Apparatus: RC (Resistor-Capacitor) circuit box, voltmeter, power supply, cables apacitance Objective: To observe the behavior of a capacitor charging and discharging through a resistor; to determine the effective capacitance when capacitors are connected in series or parallel. Apparatus:

More information

Resistors in Series and Parallel

Resistors in Series and Parallel Resistors in Series and Parallel INTRODUCTION Direct current (DC) circuits are characterized by the quantities current, voltage and resistance. Current is the rate of flow of charge. The SI unit is the

More information

Experiment 8 RC Circuits

Experiment 8 RC Circuits Experiment 8 ircuits Nature, to be commanded, must be obeyed. F. Bacon (1561-1626) OBJETIVE To study a simple circuit that has time-dependent voltages and current. THEOY ircuits with steady currents and

More information

LAB ELEC3.COMP From Physics with Computers, Vernier Software and Technology, 2003

LAB ELEC3.COMP From Physics with Computers, Vernier Software and Technology, 2003 APAITORS LAB ELE3.OMP From Physics with omputers, Vernier Software and Technology, 2003 INTRODUTION The charge q on a capacitor s plate is proportional to the potential difference V across the capacitor.

More information

PHYS-2212 LAB Ohm s Law and Measurement of Resistance

PHYS-2212 LAB Ohm s Law and Measurement of Resistance Objectives PHYS-2212 LAB Ohm s Law and Measurement of Resistance Part I: Comparing the relationship between electric current and potential difference (voltage) across an ohmic resistor with the voltage-current

More information

The current that flows is determined by the potential difference across the conductor and the resistance of the conductor (Ohm s law): V = IR P = VI

The current that flows is determined by the potential difference across the conductor and the resistance of the conductor (Ohm s law): V = IR P = VI PHYS1000 DC electric circuits 1 Electric circuits Electric current Charge can move freely in a conductor if an electric field is present; the moving charge is an electric current (SI unit is the ampere

More information

Using a Multimeter to Analyze a Circuit: Measuring Current and Voltage Calculating Power and Resistance

Using a Multimeter to Analyze a Circuit: Measuring Current and Voltage Calculating Power and Resistance Name: Date: Using a Multimeter to Analyze a Circuit: Measuring Current and Voltage Calculating Power and Resistance Background Information and Pre-Lab Activity Materials: One solar module One small DC

More information

Lab 3 - DC Circuits and Ohm s Law

Lab 3 - DC Circuits and Ohm s Law Lab 3 DC Circuits and Ohm s Law L3-1 Name Date Partners Lab 3 - DC Circuits and Ohm s Law OBJECTIES To learn to apply the concept of potential difference (voltage) to explain the action of a battery in

More information

SERIES AND PARALELL CIRCUITS

SERIES AND PARALELL CIRCUITS SERES AND PARALELL CRCUTS LAB ELEC 2.COMP From Physics with Computers, Vernier Software & Technology, 2003 NTRODUCTON Components in an electrical circuit are in series when they are connected one after

More information

Physics 260 Calculus Physics II: E&M. RC Circuits

Physics 260 Calculus Physics II: E&M. RC Circuits RC Circuits Object In this experiment you will study the exponential charging and discharging of a capacitor through a resistor. As a by-product you will confirm the formulas for equivalent capacitance

More information

RC Circuits. 1 Introduction. 2 Capacitors

RC Circuits. 1 Introduction. 2 Capacitors 1 RC Circuits Equipment DataStudio with 750 interface, RLC circuit board, 2 voltage sensors (no alligator clips), 2x35 in. leads, 12 in. lead Reading Review operation of DataStudio oscilloscope. Review

More information

Using an Oscilloscope

Using an Oscilloscope Using an Oscilloscope The oscilloscope is used to measure a voltage that changes in time. It has two probes, like a voltmeter. You put these probes on either side of the thing that you want to measure

More information

RC Circuits. The purpose of this lab is to understand how capacitors charge and discharge.

RC Circuits. The purpose of this lab is to understand how capacitors charge and discharge. Department of Physics and Geology Purpose Circuits Physics 2402 The purpose of this lab is to understand how capacitors charge and discharge. Materials Decade Resistance Box (CENCO), 0.1 µf, 0.5µF, and

More information

Capacitors. We charge a capacitor by connecting the two plates to a potential difference, such as a battery:

Capacitors. We charge a capacitor by connecting the two plates to a potential difference, such as a battery: RC Circuits PHYS 1112L Capacitors A capacitor is an electrical component that stores charge. The simplest capacitor is just two charged metal plates separated by a non-conducting material: In the diagram

More information

PHY 212 LAB Magnetic Field As a Function of Current

PHY 212 LAB Magnetic Field As a Function of Current PHY 212 LAB Magnetic Field As a Function of Current Apparatus DC Power Supply two D batteries one round bulb and socket a long wire 10-Ω resistor set of alligator clilps coil Scotch tape function generator

More information

Electrical Circuits. Ammeter Light Bulb Ohmmeter. Power Supply Resistor Voltmeter. Symbols for Electrical Components.

Electrical Circuits. Ammeter Light Bulb Ohmmeter. Power Supply Resistor Voltmeter. Symbols for Electrical Components. PHSC 101 Electrical Circuits Name Purpose To learn how to measure resistance, voltage, and current using a multimeter. To become familiar with the basic components of simple electrical circuits and Ohm's

More information

EXPERIMENT 7 OHM S LAW, RESISTORS IN SERIES AND PARALLEL

EXPERIMENT 7 OHM S LAW, RESISTORS IN SERIES AND PARALLEL 260 7- I. THEOY EXPEIMENT 7 OHM S LAW, ESISTOS IN SEIES AND PAALLEL The purposes of this experiment are to test Ohm's Law, to study resistors in series and parallel, and to learn the correct use of ammeters

More information

Discharging and Charging a Capacitor

Discharging and Charging a Capacitor Name: Partner(s): Desk #: Date: Discharging and Charging a Capacitor Figure 1. Various types of capacitors. "Capacitors (7189597135)" by Eric Schrader from San Francisco, CA, United States - 12739s. Licensed

More information

Electrical Circuits. Ammeter Light Bulb Ohmmeter. Power Supply Resistor Voltmeter. Symbols for Electrical Components.

Electrical Circuits. Ammeter Light Bulb Ohmmeter. Power Supply Resistor Voltmeter. Symbols for Electrical Components. Physical Science 101 Electrical Circuits Name Partner s Name Purpose To learn how to measure resistance, voltage, and current using a multimeter. To become familiar with the basic components of simple

More information

Class #12: Experiment The Exponential Function in Circuits, Pt 1

Class #12: Experiment The Exponential Function in Circuits, Pt 1 Class #12: Experiment The Exponential Function in Circuits, Pt 1 Purpose: The objective of this experiment is to begin to become familiar with the properties and uses of the exponential function in circuits

More information

LAB ELEC 25.CALC From Physics with Calculators, Vernier Software & Technology, 2003

LAB ELEC 25.CALC From Physics with Calculators, Vernier Software & Technology, 2003 OHM S LAW LAB ELEC 25.CALC From Physics with Calculators, Vernier Software & Technology, 2003 INTRODUCTION The fundamental relationship among the three important electrical quantities current, voltage,

More information

Series and Parallel Resistive Circuits Physics Lab VIII

Series and Parallel Resistive Circuits Physics Lab VIII Series and Parallel Resistive Circuits Physics Lab VIII Objective In the set of experiments, the theoretical expressions used to calculate the total resistance in a combination of resistors will be tested

More information

Teacher s Guide Physics Labs with Computers, Vol C P52: LRC Circuit. Teacher s Guide - Activity P52: LRC Circuit (Voltage Sensor)

Teacher s Guide Physics Labs with Computers, Vol C P52: LRC Circuit. Teacher s Guide - Activity P52: LRC Circuit (Voltage Sensor) Teacher s Guide Physics Labs with Computers, Vol. 2 012-06101C P52: LRC Circuit Teacher s Guide - Activity P52: LRC Circuit (Voltage Sensor) Concept DataStudio ScienceWorkshop (Mac) ScienceWorkshop (Win)

More information

Pre-Lab 7 Assignment: Capacitors and RC Circuits

Pre-Lab 7 Assignment: Capacitors and RC Circuits Name: Lab Partners: Date: Pre-Lab 7 Assignment: Capacitors and RC Circuits (Due at the beginning of lab) Directions: Read over the Lab Handout and then answer the following questions about the procedures.

More information

photovoltaic cell Evaluation copy

photovoltaic cell Evaluation copy Photovoltaic Cells Computer 25 Energy produced by the sun is called solar energy. It is produced during nuclear reactions that take place throughout the volume of the sun. The energy travels to Earth in

More information

Lab 4 - Ohm s Law and Kirchhoff s Circuit Rules

Lab 4 - Ohm s Law and Kirchhoff s Circuit Rules Lab 4 Ohm s Law and Kirchhoff s Circuit Rules L41 Name Date Partners Lab 4 Ohm s Law and Kirchhoff s Circuit Rules OBJECTIES To learn to apply the concept of potential difference (voltage) to explain the

More information

Experiment #9: RC and LR Circuits Time Constants

Experiment #9: RC and LR Circuits Time Constants Experiment #9: RC and LR Circuits Time Constants Purpose: To study the charging and discharging of capacitors in RC circuits and the growth and decay of current in LR circuits. Part 1 Charging RC Circuits

More information

Kirchhoff s Laws. Kirchhoff's Law #1 - The sum of the currents entering a node must equal the sum of the currents exiting a node.

Kirchhoff s Laws. Kirchhoff's Law #1 - The sum of the currents entering a node must equal the sum of the currents exiting a node. Kirchhoff s Laws There are two laws necessary for solving circuit problems. For simple circuits, you have been applying these equations almost instinctively. Kirchhoff's Law #1 - The sum of the currents

More information

Lab 3 Ohm s Law and Resistors

Lab 3 Ohm s Law and Resistors ` Lab 3 Ohm s Law and Resistors What You Need To Know: The Physics One of the things that students have a difficult time with when they first learn about circuits is the electronics lingo. The lingo and

More information

Physics Lab 202P-8. Understanding RC Circuits NAME: LAB PARTNERS:

Physics Lab 202P-8. Understanding RC Circuits NAME: LAB PARTNERS: Physics Lab 202P-8 Understanding RC Circuits NAME: LAB PARTNERS: LAB SECTION: LAB INSTRUCTOR: DATE: EMAIL ADDRESS: Penn State University Created by nitin samarth Physics Lab 202P-8 Page 1 of 16 Physics

More information

Lab 4 - Capacitors & RC Circuits

Lab 4 - Capacitors & RC Circuits Lab 4 Capacitors & RC Circuits L41 Name Date Partners Lab 4 Capacitors & RC Circuits OBJECTIVES To define capacitance and to learn to measure it with a digital multimeter. To explore how the capacitance

More information

Lab 4 Multisim Evaluation of an RC Network

Lab 4 Multisim Evaluation of an RC Network Lab 4 Multisim Evaluation of an RC Network Prelab Exercises All graphs must be fully labeled and drawn neatly! No answers are complete without the units! as always, show your work! 2 R 1 = 10kΩ 5V + V

More information

Ohm s and Kirchhoff s Circuit Laws. Abstract. Introduction and Theory. EE 101 Fall 2007 Date: Lab Section #: Lab #2

Ohm s and Kirchhoff s Circuit Laws. Abstract. Introduction and Theory. EE 101 Fall 2007 Date: Lab Section #: Lab #2 EE 101 Fall 2007 Date: Lab Section #: Lab #2 Name: Ohm s and Kirchhoff s Circuit Laws Abstract Rev. 20070725JPB Partner: Electrical circuits can be described with mathematical expressions. In fact, it

More information

Lab 11: Magnetic Fields Name:

Lab 11: Magnetic Fields Name: Lab 11: Magnetic Fields Name: Group Members: Date: TA s Name: Objectives: To measure and understand the magnetic field of a bar magnet. To measure and understand the magnetic field of an electromagnet,

More information

Electrical Measurements

Electrical Measurements Electrical Measurements Experimental Objective The objective of this experiment is to become familiar with some of the electrical instruments. You will gain experience by wiring a simple electrical circuit

More information

RC CIRCUIT. THEORY: Consider the circuit shown below in Fig. 1: a S. V o FIGURE 1

RC CIRCUIT. THEORY: Consider the circuit shown below in Fig. 1: a S. V o FIGURE 1 RC CIRCUIT OBJECTIVE: To study the charging and discharging process for a capacitor in a simple circuit containing an ohmic resistance, R, and a capacitance, C. THEORY: Consider the circuit shown below

More information

RC CIRCUITS. Phys 31220 Fall 2012. Introduction:

RC CIRCUITS. Phys 31220 Fall 2012. Introduction: Phys 31220 Fall 2012 RC CIRCUITS Introduction: In this experiment the rates at which capacitors in series with resistors can be charged and discharged are measured directly with a picoscope (scope) and

More information

Lab 3 Rectifier Circuits

Lab 3 Rectifier Circuits ECET 242 Electronic Circuits Lab 3 Rectifier Circuits Page 1 of 5 Name: Objective: Students successfully completing this lab exercise will accomplish the following objectives: 1. Learn how to construct

More information

Electrical Fundamentals Module 3: Parallel Circuits

Electrical Fundamentals Module 3: Parallel Circuits Electrical Fundamentals Module 3: Parallel Circuits PREPARED BY IAT Curriculum Unit August 2008 Institute of Applied Technology, 2008 ATE310- Electrical Fundamentals 2 Module 3 Parallel Circuits Module

More information

Background: Electric resistance, R, is defined by:

Background: Electric resistance, R, is defined by: RESISTANCE & OHM S LAW (PART I and II) - 8 Objectives: To understand the relationship between applied voltage and current in a resistor and to verify Ohm s Law. To understand the relationship between applied

More information

DC and RC Circuits. Equivalent Resistance. So, if we use the above operational definition of R, we get for the resistance of the pair, R = R 1 + R 2.

DC and RC Circuits. Equivalent Resistance. So, if we use the above operational definition of R, we get for the resistance of the pair, R = R 1 + R 2. DC and C Circuits Introduction This lab is intended to demonstrate simple concepts that you learned in 1402 and provide you some experience with simple electrical circuits and measurements of the properties

More information

LRC Circuits. Purpose. Principles PHYS 2211L LAB 7

LRC Circuits. Purpose. Principles PHYS 2211L LAB 7 Purpose This experiment is an introduction to alternating current (AC) circuits. Using the oscilloscope, we will examine the voltage response of inductors, resistors and capacitors in series circuits driven

More information

Robot Board Sub-System Testing. Abstract. Introduction and Theory. Equipment. Procedures. EE 101 Spring 2006 Date: Lab Section # Lab #6

Robot Board Sub-System Testing. Abstract. Introduction and Theory. Equipment. Procedures. EE 101 Spring 2006 Date: Lab Section # Lab #6 EE 101 Spring 2006 Date: Lab Section # Lab #6 Name: Robot Board Sub-System Testing Partner: No Lab partners this time! Abstract The ECEbot robots have a printed circuit board (PCB) containing most of the

More information

Electricity & Electronics 8: Capacitors in Circuits

Electricity & Electronics 8: Capacitors in Circuits Electricity & Electronics 8: Capacitors in Circuits Capacitors in Circuits IM This unit considers, in more detail, the charging and discharging of capacitors. It then investigates how capacitors behave

More information

College Physics II Lab 8: RC Circuits

College Physics II Lab 8: RC Circuits INTODUTION ollege Physics II Lab 8: ircuits Peter olnick with Taner Edis Spring 2015 Introduction onsider the circuit shown. (onsult section 23.7 in your textbook.) If left for long enough, the charge

More information

Magnetic Fields and Their Effects

Magnetic Fields and Their Effects Name Date Time to Complete h m Partner Course/ Section / Grade Magnetic Fields and Their Effects This experiment is intended to give you some hands-on experience with the effects of, and in some cases

More information

Electrical Resonance

Electrical Resonance Electrical Resonance (R-L-C series circuit) APPARATUS 1. R-L-C Circuit board 2. Signal generator 3. Oscilloscope Tektronix TDS1002 with two sets of leads (see Introduction to the Oscilloscope ) INTRODUCTION

More information

3 DC Circuits, Ohm's Law and Multimeters

3 DC Circuits, Ohm's Law and Multimeters 3 DC Circuits, Ohm's Law and Multimeters Theory: Today's lab will look at some basics of electricity and how these relate to simple circuit diagrams. Three basic terms are important to a study of electricity.

More information

Kirchhoff s Laws Physics Lab IX

Kirchhoff s Laws Physics Lab IX Kirchhoff s Laws Physics Lab IX Objective In the set of experiments, the theoretical relationships between the voltages and the currents in circuits containing several batteries and resistors in a network,

More information