Pasco EM-8656 AC_DC ELECTRONICS LABORATORY User Manual

012-05892A1/96© 1995 PASCO scientific $15.00Instruction Manual andExperiment Guide forthe PASCO scientificModel EM-8656IncludesTeacher's Notesand

6AC/DC Electronics Laboratory 012-05892A®Procedure➀ Use two pieces of wire to make connections between the springs on one of the light bulbs tothe spr

96AC/DC Electronics Laboratory 012-05892A®3 VOLTS MAXCWEM-8656 AC/DC ELECTRONICS LABORATORYCBEBattery––+Battery➆ Connect a red banana plug patch cord

97012-05892A AC/DC Electronics Laboratory®11Put alligator clips on the banana plugs of both Voltage Sensors. Connect the black alligator clipof the Vo

98AC/DC Electronics Laboratory 012-05892A®Analyzing the Data➀ Click on the Graph to make it active. Select “Save As…” from the File menu to save your

99012-05892A AC/DC Electronics Laboratory®➄ The “a2” coefficient of the Linear Fit line is the slope of the linear region. Record the value ofthe slop

100AC/DC Electronics Laboratory 012-05892A®

101012-05892A AC/DC Electronics Laboratory®Experiment #19: Transistor Lab 3 –Common-Emitter AmplifierEQUIPMENT NEEDED:– Computer and Science Workshop™

102AC/DC Electronics Laboratory 012-05892A®blackredPower AmplifierTo Channel Aredblack1 kΩ1 µF22 kΩ10 kΩ2 kΩ1 kΩINOUT10 µF22 kΩSection 1 Section 2 Sec

103012-05892A AC/DC Electronics Laboratory®➃ In the Physics Folder of the Science Workshop Experiment Library, open the document:Macintosh: “P56 Trans

104AC/DC Electronics Laboratory 012-05892A®➀ Insert the 2N3904 transistor into the socket on the AC/DC Electronics Lab Board. The transistorhas a half

105012-05892A AC/DC Electronics Laboratory®➄ Connect one five inch wire lead from the component spring next to the emitter terminal of thetransistor t

7012-05892A AC/DC Electronics Laboratory®EQUIPMENT NEEDED:– AC/DC Electronics Lab Board: Wire Leads– (2) D-cell Batteries– Graph PaperPurposeThe purpo

106AC/DC Electronics Laboratory 012-05892A®➤ NOTE: The negative end of the 10 µF capacitor has a slight bump. The positive end has anindentation aroun

107012-05892A AC/DC Electronics Laboratory®➉ Turn off the power switch on the back of the power amplifier. Turn off the DC power supply.Voltage (peak)

108AC/DC Electronics Laboratory 012-05892A®

109012-05892A AC/DC Electronics Laboratory®Experiment 20:Induction – Magnet Through a CoilEQUIPMENT NEEDED:– Computer and Science Workshop™ Interface

110AC/DC Electronics Laboratory 012-05892A®➂ In the Physics Folder of the Science Workshop Experiment Library, open the document:Macintosh: “P47 Induc

111012-05892A AC/DC Electronics Laboratory®➤ NOTE: The bar magnet will be dropped through the coil. Make sure that the magnet does notstrike the floor

112AC/DC Electronics Laboratory 012-05892A®Questions➀ Is the incoming flux equal to the outgoing flux?➁ Why is the outgoing peak higher than the incom

113012-05892A AC/DC Electronics Laboratory®Appendix: Tips and TroubleshootingCorrect Circuit, Doesn’t Work• Check to see if the circuit is indeed conn

114AC/DC Electronics Laboratory 012-05892A®WiresThe Circuits Experiment Board can be used with a largevariety of wire types and sizes. We recommend 2

115012-05892A AC/DC Electronics Laboratory®Teacher's Guide (Experiments 1-10)Exp 1 - Circuits Experiment Board➀➁ Reversing things at either end

8AC/DC Electronics Laboratory 012-05892A®PART B➆ Connect a single D-cell to a single light as in step 1, using a spring clip “switch” to allowyou to e

116AC/DC Electronics Laboratory 012-05892A®Exp 3- Ohm's LawProcedure➁-➅)Warn the students to be particularly careful whensetting up the multimete

117012-05892A AC/DC Electronics Laboratory®ProcedureEqual Resistors:Seriesmeasurement Resistance Voltage1 100 0.5232 100 0.5283 100 0.52712 200 1.0512

118AC/DC Electronics Laboratory 012-05892A®Exp 6- Currents in Circuits➤NOTE: The resistors used were:R1 = 100ΩR2 = 330ΩR3 = 560ΩThese are the same res

119012-05892A AC/DC Electronics Laboratory®AnalysisFirst circuit:➀ node (1,3): 0.1 mAnode (1,2,5): 0.0 mAnode (3,4,5): -0.1 mAnode (2,4): 0.0 mA➁ loop

120AC/DC Electronics Laboratory 012-05892A®Exp 9- DiodesAnalysisThe diode acts as a one-way valve for electricity. Currentcan flow in one direction, b

121012-05892A AC/DC Electronics Laboratory®Technical SupportFeed-BackIf you have any comments about this product or thismanual please let us know. If

9012-05892A AC/DC Electronics Laboratory®EQUIPMENT NEEDED:– AC/DC Electronics Lab Board: Wire Leads– D-cell Battery– Multimeter– Graph PaperPurposeThe

10AC/DC Electronics Laboratory 012-05892A®Data Processing➀ Construct a graph of Current (vertical axis) vs Resistance.➁ For each of your sets of data,

11012-05892A AC/DC Electronics Laboratory®EQUIPMENT NEEDED:– AC/DC Electronics Lab Board: Resistors– MultimeterPurposeThe purpose of this lab is to be

12AC/DC Electronics Laboratory 012-05892A®Series➅ Construct a PARALLEL CIRCUIT, first using combinations of two of the resistors, and thenusing all th

13012-05892A AC/DC Electronics Laboratory®Colors1st 2nd 3rd 4thResistanceMeasuredResistanceCodedError%ToleranceBAC➤➤➤➤➤➤RARBRABRCRABCRBCRA

14AC/DC Electronics Laboratory 012-05892A®CombinationDiscussion➀ How does the % error compare to the coded tolerance for your resistors?➁ What is the

15012-05892A AC/DC Electronics Laboratory®➤➤➤➤➤➤➤➤R1R1 =V1 =R2 =V2 =R3 =V3 =R12 =V12 =R23 =V23 =R123=V123=Figure 5.1--V1R2R3V23V

16AC/DC Electronics Laboratory 012-05892A®➂ Now connect the parallel circuit below, using all three resistors. Measure the voltage acrosseach of the

17012-05892A AC/DC Electronics Laboratory®➤➤➤➤➤➤-++-RARBRCVABVABC-+-VA-VBC++Figure 5.4Series➤➤RABC=VA =VB =VABC=VC =RC =RB =RA =VARCRARB-

18AC/DC Electronics Laboratory 012-05892A®CombinationDiscussionOn the basis of the data you recorded on the table with Figure 5.1, what is the pattern

19012-05892A AC/DC Electronics Laboratory®EQUIPMENT NEEDED:– AC/DC Electronics Lab Board: Resistors and Wire Leads– D-cell Battery– Digital Multimeter

20AC/DC Electronics Laboratory 012-05892A®Figure 6.3R2-++--+R3R1-++--I4+R1 =R2 =R3 =R12 =R23 =R123=I0 =I1 =I2 =I3 =V1 =V2 =

21012-05892A AC/DC Electronics Laboratory®EQUIPMENT NEEDED:– AC/DC Electronics Lab Board: Resistors, Wire Leads– (2) D-cell Batteries– Digital Multime

22AC/DC Electronics Laboratory 012-05892A®Resistance, Ω Voltage, volts Current, mAR1R2R3R4R5RTV1V2V3V4V5VTI1I2I3I4I5ITR2R4R1R3R5V1V2Figure 7.2Analysis

23012-05892A AC/DC Electronics Laboratory®3 VOLTS MAXCE–+BatteryCW–BatteryExperiment 8: Capacitors in CircuitsEQUIPMENT NEEDED:– AC/DC Electronics La

24AC/DC Electronics Laboratory 012-05892A®Table 8.1Trial Resistance Capacitance12345678tCtD⑧ Replace the 100 µF capacitor with a 330 µF capacitor. Re

25012-05892A AC/DC Electronics Laboratory®Experiment 9: DiodesEQUIPMENT NEEDED:– AC/DC Electronics Lab Board: 1 KΩ Resistor, 330 Ω Resistor, 1N4007 D

i012-05892A AC/DC Electronics Laboratory®Table of ContentsSection...

26AC/DC Electronics Laboratory 012-05892A®DiscussionDiscuss the shape of your graph and what it means for the operation of a semiconductor diode.Did t

27012-05892A AC/DC Electronics Laboratory®EQUIPMENT NEEDED:– AC/DC Electronics Lab Board: 1 kW Resistor, 100 Ω Resistor,2N3904 Transistor (NPN), Wire

28AC/DC Electronics Laboratory 012-05892A®Analysis➀ For each of your sets of readings, calculate:IB = VAB / R1 and IC = VCD / R2Record all of your cu

29012-05892A AC/DC Electronics Laboratory®Experiment 11: Ohm's Law IIEQUIPMENT NEEDED:– Computer and Science Workshop™ Interface– Power Amplifi

30AC/DC Electronics Laboratory 012-05892A®➂ In the Physics Folder of the Science Workshop Experiment Library, open the document:Macintosh: “P46 Ohm&ap

31012-05892A AC/DC Electronics Laboratory®➄ The Signal Generator is set to output 3.00 V, triangle AC waveform, at 60.00 Hz.➅ The Scope is set to show

32AC/DC Electronics Laboratory 012-05892A®➃ Select the Scope display.Analyzing the Data – Resistor (10 Ω)➀ Click the “Smart Cursor” button ( ) in the

33012-05892A AC/DC Electronics Laboratory®slope (10 Ω) = ________ Volts/AmpsOptional➀ Replace the 10 Ω resistor with the 100 Ω resistor.➁ Click the “I

34AC/DC Electronics Laboratory 012-05892A®➂ Click on the Frequency value to highlight it. Type in “0.30” as the new value. Press the “enter” key. ➃ Cl

35012-05892A AC/DC Electronics Laboratory®PART II: Equipment Setup for Light Bulb Filament➀ Remove the resistor from the component springs on the AC/D

iiAC/DC Electronics Laboratory 012-05892A®Copyright NoticeThe PASCO scientific Model EM-8656 AC/DC Electron-ics Laboratory manual is copyrighted and a

36AC/DC Electronics Laboratory 012-05892A®➀ Turn on the switch on the back of the Power Amplifier.➁ Click the “ON” button in the Signal Generator wind

37012-05892A AC/DC Electronics Laboratory®Experiment 12: RC CircuitEQUIPMENT NEEDED:– Computer and Science Workshop™ Interface– Power Amplifier (CI-6

38AC/DC Electronics Laboratory 012-05892A®ProcedurePART I: Computer Setup➀ Connect the Science Workshop interface to the computer, turn on the interfa

39012-05892A AC/DC Electronics Laboratory®➤ Note: For quick reference, see the Experiment Notes window. To bring a display to the top,click on its win

40AC/DC Electronics Laboratory 012-05892A®➃ When data recording is complete, turn off the switch on the back of the Power Amplifier.Analyzing the Data

41012-05892A AC/DC Electronics Laboratory®➂ Click the “Smart Cursor” button ( ). The cursor changes to a cross-hair when you move thecursor into the d

42AC/DC Electronics Laboratory 012-05892A®Questions➀ The time to half-maximum voltage is how long it takes the capacitor to charge halfway. Based onyo

43012-05892A AC/DC Electronics Laboratory®Experiment 13: LR CircuitEQUIPMENT NEEDED:– Computer and Science Workshop™ Interface– Power Amplifier (CI-6

44AC/DC Electronics Laboratory 012-05892A®Since the voltage across an inductor is given by VL= LdIdt, the voltage across the inductorstarts at its

45012-05892A AC/DC Electronics Laboratory®The document opens with a Graph display of Voltage (V) versus Time (sec), and the SignalGenerator window whi

1012-05892A AC/DC Electronics Laboratory®IntroductionThe EM-8656 AC/DC Electronics Laboratory is designedfor both DC and AC electricity experiments.

46AC/DC Electronics Laboratory 012-05892A®➁ Connect the 10 Ω resistor (brown, black, black)between the component spring at the left hand edgeof the in

47012-05892A AC/DC Electronics Laboratory®➀ Click the “Smart Cursor” button ( ) in the Scope. The cursor changes to a cross-hair. Movethe cursor into

48AC/DC Electronics Laboratory 012-05892A®➃ Subtract the time for the peak voltage from the time for the half-max voltage to get the time for thevolta

49012-05892A AC/DC Electronics Laboratory®Experiment 14: LRC CircuitEQUIPMENT NEEDED:– Computer and Science Workshop™ Interface– Power Amplifier (CI-

50AC/DC Electronics Laboratory 012-05892A®ProcedurePART I: Computer Setup➀ Connect the Science Workshop interface to the computer, turn on the interfa

51012-05892A AC/DC Electronics Laboratory®➤ NOTE: For quick reference, see the Experiment Notes window. To bring a display to the top,click on its win

52AC/DC Electronics Laboratory 012-05892A®Part III: Data Recording➀ Turn on the power switch on the back of the power amplifier.➁ Click the “MON” butt

53012-05892A AC/DC Electronics Laboratory®➈ Make fine adjustments to the frequency until the trace of voltage from Channel B is in phasewith the trace

54AC/DC Electronics Laboratory 012-05892A®c. Click the “MON” button to begin monitoring data again. Adjust the frequency in the SignalGenerator window

55012-05892A AC/DC Electronics Laboratory®Data TableFreq(Hz) VoVRFreq(Hz) VoVR10 9020 10030 11040 12050 13060 14070 15080Item ValueResonant frequency

2AC/DC Electronics Laboratory 012-05892A®EM-8656 AC/DC ELECTRONICS LABORATORY3 VOLTS MAXCW3.3Ω3 VOLT BULBSABCCBEKIT NO.–+–+Getting StartedBattery Hold

56AC/DC Electronics Laboratory 012-05892A®Optional➀ Use the voltage sensor in Analog Channel B to measure the peak voltage across each of thecomponent

57012-05892A AC/DC Electronics Laboratory®Experiment 15: Diode Lab – Part 1EQUIPMENT NEEDED:– Computer and Science Workshop™ Interface– Power Amplifi

58AC/DC Electronics Laboratory 012-05892A®PROCEDURE: Unit One – Diode PropertiesPART I: Computer Setup➀ Connect the Science Workshop interface to the

59012-05892A AC/DC Electronics Laboratory®➤ NOTE: For quick reference, see the Experiment Notes window. To bring a display to the top,click on its win

60AC/DC Electronics Laboratory 012-05892A®➄ Connect the alligator clips of the Channel B voltage sensor to the wires at both ends of the 1 kresistor.➅

61012-05892A AC/DC Electronics Laboratory®➃ Use the cursor to click-and-draw a rectangle around the region of the plot of current and voltagewhere the

62AC/DC Electronics Laboratory 012-05892A®PROCEDURE: Unit Two – Light-Emitting DiodesPART I: Computer Setup• You do not need to change the computer se

63012-05892A AC/DC Electronics Laboratory®➃ Click the “Magnifier” button ( ). The cursor changes to a magnifying glass shape.➄ Use the cursor to click

64AC/DC Electronics Laboratory 012-05892A®ANALYZING THE DATA: Bi-Color LED➀ Select “Save As…” from the File menu to save your data.➁ Select “Run #5” f

65012-05892A AC/DC Electronics Laboratory®Data Table 2: Bi-Color LEDDescription Voltage (V) at 2 mA Voltage (V) at -2 mA5. Bi-Color LEDQuestions➀ In U

3012-05892A AC/DC Electronics Laboratory®Notes on the Circuits Experiment BoardThe springs are securely soldered to the board and serveas a convenient

66AC/DC Electronics Laboratory 012-05892A®

67012-05892A AC/DC Electronics Laboratory®Experiment 16: Diode Lab – Part 2EQUIPMENT NEEDED:– Computer and Science Workshop™ Interface– Power Amplifi

68AC/DC Electronics Laboratory 012-05892A®➂ Connect the Power Amplifier to Analog Channel C. Plug the power cord into the back of thePower Amplifier a

69012-05892A AC/DC Electronics Laboratory®➄ The Signal Generator is set to output 6.00 V, sine AC waveform, at 2.00 Hz.➅ The periodic sampling rate is

70AC/DC Electronics Laboratory 012-05892A®• The “A” channel trace on the Scope display is the voltage across the diode. The “B” channel traceis the vo

71012-05892A AC/DC Electronics Laboratory®➇ Save the data for the other trace on the Scope display. Click the middle “Data Snapshot” button.Enter the

72AC/DC Electronics Laboratory 012-05892A®➃ Click the “Add Plot” menu button ( ) at the lower left corner of the Graph. Select “DataCache, Resistor Vo

73012-05892A AC/DC Electronics Laboratory®PART IIIB: Data Recording - Rectifying a Sine Wave with a LED➀ Remove the diode from the component springs.

74AC/DC Electronics Laboratory 012-05892A®➄ Click on the Signal Generator window, or select it from the Experiment menu. Click on thefrequency to high

75012-05892A AC/DC Electronics Laboratory®➃ Click the “STOP” button.➄ Click the “Data Snapshot” button ( ) for the “B” channel. Enter Data Cache Infor

4AC/DC Electronics Laboratory 012-05892A®VOM:The Volt-Ohm-Meter or VOM is a multiple scale, multiplefunction meter (such as the PASCO SB-9623 AnalogMu

76AC/DC Electronics Laboratory 012-05892A®➃ Click the “STOP” button.➄ Click the “Data Snapshot” button ( ) for the “B” channel. Enter Data Cache Infor

77012-05892A AC/DC Electronics Laboratory®12Click the “OFF” button ( ) in the Signal Generator window. Turn off the power switch onthe back of the pow

78AC/DC Electronics Laboratory 012-05892A®➆ Type in “6.5” for the Max and -6.5 for the Min, and then click “OK”.➇ Click anywhere on the vertical axis

79012-05892A AC/DC Electronics Laboratory®➅ Put the 100 Ω resistordiagonally between the upperleft corner and the lower rightcorner of the square ofdi

80AC/DC Electronics Laboratory 012-05892A®• The top trace is the voltage across the “load” resistor. (The other trace is the Output Voltage.)➃ Click t

81012-05892A AC/DC Electronics Laboratory®➈ Click the “MON” button ( ) to begin data monitoring.➉ Click the “STOP” button.11Click the “Data Snapshot”

82AC/DC Electronics Laboratory 012-05892A®16Click the “STOP” button.17Click the “Data Snapshot” button ( ) for the “B” channel. Enter Data Cache Infor

83012-05892A AC/DC Electronics Laboratory®➃ Click the “Add Plot” menu button ( ) at the lower left corner of the Graph. Select “DataCache, Filtered Fu

84AC/DC Electronics Laboratory 012-05892A®Questions➀ In Unit Three, how do the plots of voltage across the diode and voltage across the resistor com-p

85012-05892A AC/DC Electronics Laboratory®Experiment 17: Transistor Lab 1 – The NPNTransistor as a Digital SwitchEQUIPMENT NEEDED:– Computer and Scien

5012-05892A AC/DC Electronics Laboratory®EQUIPMENT NEEDED:– AC/DC Electronics Lab Board: Wire Leads– D-cell Battery– Graph PaperPurposeThe purpose of

86AC/DC Electronics Laboratory 012-05892A®A transistor circuit can serve as a ‘digitial’ electric switch. In a mechanical electric switch, a smallamou

87012-05892A AC/DC Electronics Laboratory®The document opens with a Graph display with a plot of “Vbase” (voltage to the base) in Volts(V) versus Time

88AC/DC Electronics Laboratory 012-05892A®PART II: Sensor Calibration and Equipment Setup• You do not need to calibrate the Voltage Sensor or Power Am

89012-05892A AC/DC Electronics Laboratory®➈ Connect a black banana plug patch cord from the negative (-) terminal of the Power Amplifier tothe negativ

90AC/DC Electronics Laboratory 012-05892A®➄ Click the “OFF” button ( ) in the Signal Generator window.➅ Turn off the power switch on the back of the p

91012-05892A AC/DC Electronics Laboratory®Smart CursorY-coordinate➅ Record the Y-coordinate of that point on the plot of Vbase.voltage _________ (V)QU

92AC/DC Electronics Laboratory 012-05892A®

93012-05892A AC/DC Electronics Laboratory®Experiment 18: Transistor Lab 2 – Current Gain:The NPN Emitter-Follower AmplifierEQUIPMENT NEEDED:– Computer

94AC/DC Electronics Laboratory 012-05892A®PROCEDUREPART I: Computer Setup➀ Connect the Science Workshop interface to the computer, turn on the interfa

95012-05892A AC/DC Electronics Laboratory®➤ NOTE: For quick reference, see the Experiment Notes window. To bring a display to the top,click on its win