PASCO EM-8656 - Manual

2 AC/DC Electronics Laboratory 012-05892A ® EM-8656 AC/DC ELECTRONICS LABORATORY 3 VOLTS MAX C W 3.3 Ω 3 VOLT BULBS A B C C B E KIT NO. – + – + Getting Started Battery Holder Coil Potentiometer 3.3 Ω Resistor Transistor socket (3) Light Bulbs and Sockets Pushbutton switch Component spring Banana Jac...

3 012-05892A AC/DC Electronics Laboratory ® Notes on the Circuits Experiment Board The springs are securely soldered to the board and serveas a convenient method for connecting wires, resistorsand other components. Some of the springs are con-nected electrically to devices like the potentiometer and...

4 AC/DC Electronics Laboratory 012-05892A ® VOM: The Volt-Ohm-Meter or VOM is a multiple scale, multiplefunction meter (such as the PASCO SB-9623 AnalogMultimeter), typically measuring voltage and resistance,and often current, too. These usually have a meter move-ment, and may select different funct...

5 012-05892A AC/DC Electronics Laboratory ® EQUIPMENT NEEDED: – AC/DC Electronics Lab Board: Wire Leads– D-cell Battery– Graph Paper Purpose The purpose of this lab is to become familiar with the Circuits Experiment Board, to learnhow to construct a complete electrical circuit, and to learn how to r...

6 AC/DC Electronics Laboratory 012-05892A ® Procedure ➀ Use two pieces of wire to make connections between the springs on one of the light bulbs tothe springs on the D-cell in such a way that the light will glow. Discuss with your lab partnerbefore you begin actually wiring your circuit which connec...

7 012-05892A AC/DC Electronics Laboratory ® EQUIPMENT NEEDED: – AC/DC Electronics Lab Board: Wire Leads– (2) D-cell Batteries– Graph Paper Purpose The purpose of this lab is to determine how light bulbs behave in different circuit arrangements.Different ways of connecting two batteries will also be ...

8 AC/DC Electronics Laboratory 012-05892A ® PART B ➆ Connect a single D-cell to a single light as in step 1, using a spring clip “switch” to allowyou to easily turn the current on and off. Note the brightness of the light. ⑧ Now connect the second D-cell into the circuit as shown in Figure 2.1a. Wha...

9 012-05892A AC/DC Electronics Laboratory ® EQUIPMENT NEEDED: – AC/DC Electronics Lab Board: Wire Leads– D-cell Battery– Multimeter– Graph Paper Purpose The purpose of this lab will be to investigate the three variables involved in a mathematicalrelationship known as Ohm’s Law. Procedure ➀ Choose on...

10 AC/DC Electronics Laboratory 012-05892A ® Data Processing ➀ Construct a graph of Current (vertical axis) vs Resistance. ➁ For each of your sets of data, calculate the ratio of Voltage/Resistance. Compare the valuesyou calculate with the measured values of the current. Discussion ➀ From your graph...

11 012-05892A AC/DC Electronics Laboratory ® EQUIPMENT NEEDED: – AC/DC Electronics Lab Board: Resistors– Multimeter Purpose The purpose of this lab is to begin experimenting with the variables that contribute to the opera-tion of an electrical circuit. This is the first of a three connected labs. Pr...

12 AC/DC Electronics Laboratory 012-05892A ® Series ➅ Construct a PARALLEL CIRCUIT, first using combinations of two of the resistors, and thenusing all three. Measure and record your values for these circuits. Parallel ➤ NOTE: Include also R 13 by replacing R 2 with R 3 . ➆ Connect the COMBINATIONCI...

13 012-05892A AC/DC Electronics Laboratory ® Colors 1st 2nd 3rd 4th Resistance Measured Resistance Coded Error % Tolerance B A C ➤ ➤ ➤ ➤ ➤ ➤ R A R B R A B R C R A B C R B C R A B C = R B C = R A B = Series Parallel ➤ NOTE: Include also R AC by replacing R B with R C . ➤ ➤ R C R A R A B R B R A B = R...

15 012-05892A AC/DC Electronics Laboratory ® ➤ ➤ ➤ ➤ ➤ ➤ ➤ ➤ R 1 R 1 = V 1 = R 2 = V 2 = R 3 = V 3 = R 12 = V 12 = R 23 = V 23 = R 123 = V 123 = Figure 5.1 - - V 1 R 2 R 3 V 2 3 V 12 V 123 + + - + - + + - Experiment 5: Voltages in Circuits EQUIPMENT NEEDED: – AC/DC Electronics Lab Board: Wire Leads,...

16 AC/DC Electronics Laboratory 012-05892A ® ➂ Now connect the parallel circuit below, using all three resistors. Measure the voltage acrosseach of the resistors and the combination, taking care with the polarity as before. ➤ NOTE: Keep all three resistors connected throughout the time you are makin...

19 012-05892A AC/DC Electronics Laboratory ® EQUIPMENT NEEDED: – AC/DC Electronics Lab Board: Resistors and Wire Leads– D-cell Battery– Digital Multimeter Purpose The purpose of this lab will be to continue experimenting with the variables that contribute to theoperation of electrical circuits. Proc...

20 AC/DC Electronics Laboratory 012-05892A ® Figure 6.3 R 2 - + + - - + R 3 R 1 - + + - - I 4 + R 1 = R 2 = R 3 = R 12 = R 23 = R 123 = I 0 = I 1 = I 2 = I 3 = V 1 = V 2 = V 3 = V 12 = V 23 = V 123 = R 2 R 1 + - + I 1 - + - I 2 - + I 3 R 3 Figure 6.4 I 0 + - R 1 = R 2 = R 3 = R 1 2 3 = I 0 = I 1 = I...

21 012-05892A AC/DC Electronics Laboratory ® EQUIPMENT NEEDED: – AC/DC Electronics Lab Board: Resistors, Wire Leads– (2) D-cell Batteries– Digital Multimeter (DMM) Purpose The purpose of this lab will be to experimentally demonstrate Kirchhoff’s Rules for electri-cal circuits. Procedure ➀ Connect th...

22 AC/DC Electronics Laboratory 012-05892A ® Resistance, Ω Voltage, volts Current, mA R 1 R 2 R 3 R 4 R 5 R T V 1 V 2 V 3 V 4 V 5 V T I 1 I 2 I 3 I 4 I 5 I T R 2 R 4 R 1 R 3 R 5 V 1 V 2 Figure 7.2 Analysis ➀ Determine the net current flow into or out of each of the four “nodes” in the circuit. ➁ Det...

23 012-05892A AC/DC Electronics Laboratory ® 3 VOLTS MAX C E – + Battery C W – Battery Experiment 8: Capacitors in Circuits EQUIPMENT NEEDED: – AC/DC Electronics Lab Board: Capacitors, Resistors, Wire Leads– D-cell Battery– Stopwatch or timer with 0.1 sec resolution.– Vacuum Tube Voltmeter (VTVM) or...

25 012-05892A AC/DC Electronics Laboratory ® Experiment 9: Diodes EQUIPMENT NEEDED: – AC/DC Electronics Lab Board: 1 K Ω Resistor, 330 Ω Resistor, 1N4007 Diode, Wire Leads – Digital Multimeter (DMM)– (2) D-cell Batteries Purpose The purpose of this lab will be to experimentally determine some of the...

26 AC/DC Electronics Laboratory 012-05892A ® Discussion Discuss the shape of your graph and what it means for the operation of a semiconductor diode.Did the diode operate the same in steps 3 and 4 as it did in step 5? In steps 3 and 4 the diode was“Forward Biased”, while it was “Reverse Biased” in s...

27 012-05892A AC/DC Electronics Laboratory ® EQUIPMENT NEEDED: – AC/DC Electronics Lab Board: 1 kW Resistor, 100 Ω Resistor, 2N3904 Transistor (NPN), Wire Leads – (2) D-cell Batteries– Digital Multimeter (DMM)– Optional: additional Digital Multimeter Purpose The purpose of this lab will be to experi...

29 012-05892A AC/DC Electronics Laboratory ® Experiment 11: Ohm's Law II EQUIPMENT NEEDED: – Computer and Science Workshop™ Interface– Power Amplifier (CI-6552A)– AC/DC Electronics Lab Board (EM-8656): 10 Ω resistor, 3 V light bulb, and wire leads – (2) banana plug patch cords (such as SE-9750) Purp...

31 012-05892A 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 Output Voltage on the vertical axis at 1.000 v/div and Current (AnalogA) on the horizontal axis at 0.100 v/div. ➆ Arrange the Scope display and t...

32 AC/DC Electronics Laboratory 012-05892A ® ➃ Select the Scope display. Analyzing the Data – Resistor (10 Ω ) ➀ Click the “Smart Cursor” button ( ) in the Scope. The cursor changes to a cross-hair. Move the cursor into the display area of the Scope. • The Y-coordinate of the cursor/cross-hair is sh...

33 012-05892A AC/DC Electronics Laboratory ® slope (10 Ω ) = ________ Volts/Amps Optional ➀ Replace the 10 Ω resistor with the 100 Ω resistor. ➁ Click the “Increase Sweep Speed” button ( ) in the Scope display to change the sensitivity of the horizontal axis to 0.010 v/div. ➂ Repeat the experiment. ...

35 012-05892A AC/DC Electronics Laboratory ® PART II: Equipment Setup for Light Bulb Filament ➀ Remove the resistor from the component springs on the AC/DC Electronics Lab Board. ➁ Use two of the 10” wire leads to connect between the component springs near the banana jacksand the component springs a...

36 AC/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 window. ➂ Click the “MON” button in the Experiment Setup window to begin monitoring data. Observe theScope display of Voltage versus Current for the l...

37 012-05892A AC/DC Electronics Laboratory ® Experiment 12: RC Circuit EQUIPMENT NEEDED: – Computer and Science Workshop™ Interface– Power Amplifier (CI-6552A)– Voltage Sensor (CI-6503)– AC/DC Electronics Lab Board (EM-8656): 100 Ω resistor and 330 µ F capacitor – (2) banana plug patch cords (such a...

40 AC/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 ➀ Click the “Autoscale” button ( ) in the Graph to rescale the Graph to fit the data. ➁ Click the “Magnifier” button ( ). Use the cursor to click...

41 012-05892A AC/DC Electronics Laboratory ® ➂ Click the “Smart Cursor” button ( ). The cursor changes to a cross-hair when you move the cursor into the display area of the Graph. • The Y-coordinate of the cursor/cross-hair is shown next to the vertical axis. • The X-coordinate of the cursor/cross-h...

42 AC/DC Electronics Laboratory 012-05892A ® Questions ➀ The time to half-maximum voltage is how long it takes the capacitor to charge halfway. Based onyour experimental results, how long does it take for the capacitor to charge to 75% of its maxi-mum? ➁ After four “half-lifes” (i.e., time to half-m...

43 012-05892A AC/DC Electronics Laboratory ® Experiment 13: LR Circuit EQUIPMENT NEEDED: – Computer and Science Workshop™ Interface– Power Amplifier (CI-6552A)– (2) Voltage Sensor (CI-6503)– AC/DC Electronics Lab Board (EM-8656): inductor coil & core, 10 Ω resistor, wire leads – Multimeter– (2) ...

44 AC/DC Electronics Laboratory 012-05892A ® Since the voltage across an inductor is given by V L = L dI dt     , the voltage across the inductor starts at its maximum and then decreases exponentially: V L = V o e − ( t τ ) After a time t >> t, a steady-state current I max is established a...

46 AC/DC Electronics Laboratory 012-05892A ® ➁ Connect the 10 Ω resistor (brown, black, black) between the component spring at the left hand edgeof the inductor coil, and the second componentspring to the left of the top banana jack. ➂ Connect another 5 inch wire lead between thecomponent spring nea...

48 AC/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 thevoltage to reach half-max. Record this time in the Data Table. ➄ Based on the total resistance in the circuit and the stated value for the inductance of...

49 012-05892A AC/DC Electronics Laboratory ® Experiment 14: LRC Circuit EQUIPMENT NEEDED: – Computer and Science Workshop™ Interface– Power Amplifier (CI-6552A)– Voltage Sensor (CI-6503)– AC/DC Electronics Lab Board (EM-8656): inductor coil & core, 10 Ω resistor, 100 µ F capacitor, wire lead – L...

51 012-05892A AC/DC Electronics Laboratory ® ➤ NOTE: For quick reference, see the Experiment Notes window. To bring a display to the top,click on its window or select the name of the display from the list at the end of the Displaymenu. Change the Experiment Setup window by clicking on the “Zoom” box...

53 012-05892A AC/DC Electronics Laboratory ® ➈ Make fine adjustments to the frequency until the trace of voltage from Channel B is in phasewith the trace of Output Voltage. You can adjust the frequency by clicking the “Up” or “Down”Frequency arrows while pressing the following modifier keys: To adju...

54 AC/DC Electronics Laboratory 012-05892A ® c. Click the “MON” button to begin monitoring data again. Adjust the frequency in the Signal Generator window as needed to reach the resonant frequency. Record the resonant frequency. • When the two inputs are in phase, the Scope display in “X-Y” mode wil...

55 012-05892A AC/DC Electronics Laboratory ® Data Table Freq(Hz) V o V R Freq(Hz) V o V R 10 90 20 100 30 110 40 120 50 130 60 140 70 150 80 Item Value Resonant frequency Hz Resonant angular frequency Hz Inductance mH Capacitance µ F Theoretical resonant angular frequency Hz Questions ➀ How does you...

56 AC/DC Electronics Laboratory 012-05892A ® Optional ➀ Use the voltage sensor in Analog Channel B to measure the peak voltage across each of thecomponents of the circuit individually. The sum of these peak voltages do not equal the appliedpeak voltage. Why not? Draw a phasor diagram to explain this...

57 012-05892A AC/DC Electronics Laboratory ® Experiment 15: Diode Lab – Part 1 EQUIPMENT NEEDED: – Computer and Science Workshop™ Interface– Power Amplifier (CI-6552A)– (2) Voltage Sensor (CI-6503)– AC/DC Electronics Lab Board (EM-8656)– (2) Banana plug patch cords (such as SE-9750) Purpose In this ...

58 AC/DC Electronics Laboratory 012-05892A ® PROCEDURE: Unit One – Diode Properties PART I: Computer Setup ➀ Connect the Science Workshop interface to the computer, turn on the interface, and turn on thecomputer. ➁ Connect one Voltage Sensor to Analog Channel A. Connect the second Voltage Sensor to ...

59 012-05892A AC/DC Electronics Laboratory ® ➤ NOTE: For quick reference, see the Experiment Notes window. To bring a display to the top,click on its window or select the name of the display from the list at the end of the Displaymenu. Change the Experiment Setup window by clicking on the “Zoom” box...

60 AC/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 Connect banana plug patch cords from the output of the Power Amplifier to the banana jacks onthe AC/DC Electronics Lab Board. Part III: Data Reco...

61 012-05892A 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 current begins to increase. Make the rectangle tall enough so that its upper boundary isbeyond 2 milliamp (mA). Click-and-draw rectangle around re...

62 AC/DC Electronics Laboratory 012-05892A ® PROCEDURE: Unit Two – Light-Emitting Diodes PART I: Computer Setup • You do not need to change the computer setup. PART II: Sensor Calibration and Equipment Setup ➀ Prepare the red, yellow, and green LED’s by very carefully bending the wire leads so they ...

63 012-05892A AC/DC Electronics Laboratory ® ➃ Click the “Magnifier” button ( ). The cursor changes to a magnifying glass shape. ➄ Use the cursor to click-and-draw a rectangle around the region of the plot of current and voltagewhere the current begins to increase. Make the rectangle tall enough so ...

65 012-05892A AC/DC Electronics Laboratory ® Data Table 2: Bi-Color LED Description Voltage (V) at 2 mA Voltage (V) at -2 mA 5. Bi-Color LED Questions ➀ In Unit One, what does the plot of Diode Current versus Voltage mean? ➁ In Unit Two, which LED has the lowest turn-on voltage? Which LED has the hi...

67 012-05892A AC/DC Electronics Laboratory ® Experiment 16: Diode Lab – Part 2 EQUIPMENT NEEDED: – Computer and Science Workshop™ Interface– Power Amplifier (CI-6552A)– (2) Voltage Sensor (CI-6503)– AC/DC Electronics Lab Board (EM-8656)– (2) Banana plug patch cords (such as SE-9750) Purpose In this ...

70 AC/DC Electronics Laboratory 012-05892A ® • The “A” channel trace on the Scope display is the voltage across the diode. The “B” channel traceis the voltage across the resistor. ➃ To “capture” the data displayed in the Scope, click the “PAUSE” button ( ) to temporarily halt data monitoring when bo...

71 012-05892A AC/DC Electronics Laboratory ® ➇ Save the data for the other trace on the Scope display. Click the middle “Data Snapshot” button.Enter the needed information in the “Data Cache Information” window and then click “OK”. • The short names of the data caches will appear in the Data list in...

72 AC/DC Electronics Laboratory 012-05892A ® ➃ Click the “Add Plot” menu button ( ) at the lower left corner of the Graph. Select “Data Cache, Resistor Voltage” from the “Add Plot” menu. ➄ Click anywhere on the vertical axis of the top plot (Diode Voltage). The “Enter Plot Y Scale”window opens. ➅ Ty...

73 012-05892A AC/DC Electronics Laboratory ® PART IIIB: Data Recording - Rectifying a Sine Wave with a LED ➀ Remove the diode from the component springs. Carefully place a colored LED in the componentsprings. ➁ Repeat the data recording procedure as in Part IIIA. ➂ After you finish recording data, t...

74 AC/DC Electronics Laboratory 012-05892A ® ➄ Click on the Signal Generator window, or select it from the Experiment menu. Click on thefrequency to highlight it. Type in “60” as the new frequency, and press “enter” on the keyboard. PART II: Sensor Calibration and Equipment Setup • You do not need t...

75 012-05892A AC/DC Electronics Laboratory ® ➃ Click the “STOP” button. ➄ Click the “Data Snapshot” button ( ) for the “B” channel. Enter Data Cache Information for “Long Name”, “Short Name”, and Units as needed to save the data for analysis. ➅ Click the “OFF” button ( ) in the Signal Generator wind...

77 012-05892A AC/DC Electronics Laboratory ® 12 Click the “OFF” button ( ) in the Signal Generator window. Turn off the power switch on the back of the power amplifier. ANALYZING THE DATA: Power Supply, Single Diode ➀ Select “Save As…” from the File menu to save your data. ➁ Select “New Graph” from ...

78 AC/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 of the middle plot (Filtered Voltage). Type in “10” and “-10”for the Max and Min and then click “OK. Repeat for the bottom plot (Load Resistor Vol...

79 012-05892A AC/DC Electronics Laboratory ® ➅ Put the 100 Ω resistor diagonally between the upperleft corner and the lower rightcorner of the square ofdiodes. ➆ Use a five inch wire lead toconnect a component springnext to the top banana jackand the component spring atthe RIGHT end of the firstdiod...

82 AC/DC Electronics Laboratory 012-05892A ® 16 Click the “STOP” button. 17 Click the “Data Snapshot” button ( ) for the “B” channel. Enter Data Cache Information for “Long Name”, “Short Name”, and Units as needed to save the data for analysis. 18 Click the “OFF” button ( ) in the Signal Generator w...

85 012-05892A AC/DC Electronics Laboratory ® Experiment 17: Transistor Lab 1 – The NPN Transistor as a Digital Switch EQUIPMENT NEEDED: – Computer and Science Workshop™ Interface– Power Amplifier (CI-6552A)– Voltage Sensor (CI-6503)– AC/DC Electronics Lab Board (EM-8656)– Regulated DC power supply o...

88 AC/DC Electronics Laboratory 012-05892A ® PART II: Sensor Calibration and Equipment Setup • You do not need to calibrate the Voltage Sensor or Power Amplifier. ➀ Insert the 2N3904 transistor into the socket on the AC/DC Electronics Lab Board. The transistorhas a half-cylinder shape with one flat ...

89 012-05892A AC/DC Electronics Laboratory ® ➈ Connect a black banana plug patch cord from the negative (-) terminal of the Power Amplifier tothe negative terminal of the DC power supply. ➉ Put alligator clips on the banana plugs of the Voltage Sensor. Connect the red lead of the sensorto the compon...

90 AC/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 power amplifier. Turn off the DC power supply. ANALYZING THE DATA ➀ Click on the Graph to make it active. Select “Save As…” from the File menu to s...

91 012-05892A AC/DC Electronics Laboratory ® Smart Cursor Y-coordinate ➅ Record the Y-coordinate of that point on the plot of Vbase. voltage _________ (V) QUESTIONS ➀ What is the behavior of the LED when the circuit is active? ➁ How does the general shape of the plot for the Vbase compare to the plo...

93 012-05892A AC/DC Electronics Laboratory ® Experiment 18: Transistor Lab 2 – Current Gain: The NPN Emitter-Follower Amplifier EQUIPMENT NEEDED: – Computer and Science Workshop™ Interface– Power Amplifier (CI-6552A)– (2) Voltage Sensor (CI-6503)– AC/DC Electronics Lab Board (EM-8656)– Regulated DC ...

99 012-05892A AC/DC Electronics Laboratory ® ➄ The “a2” coefficient of the Linear Fit line is the slope of the linear region. Record the value ofthe slope. • The slope can be interpreted as follows: slope = ∆ I c ∆ I b = β where β is called current gain of the transistor. ➅ Record the current gain o...

101 012-05892A AC/DC Electronics Laboratory ® Experiment #19: Transistor Lab 3 – Common-Emitter Amplifier EQUIPMENT NEEDED: – Computer and Science Workshop™ Interface– Power Amplifier (CI-6552A)– Voltage Sensor (CI-6503)– AC/DC Electronics Lab Board (EM-8656)– Regulated DC power supply of at least +...

102 AC/DC Electronics Laboratory 012-05892A ® black red Power Amplifier To Channel A red black 1 k Ω 1 µ F 22 k Ω 10 k Ω 2 k Ω 1 k Ω IN OUT 10 µ F 22 k Ω Section 1 Section 2 Section 3 Section 4 Input couplingcircuit Biascircuit Amplifiercircuit Output couplingcircuit +5 V +5 V Each section of the co...

104 AC/DC Electronics Laboratory 012-05892A ® ➀ Insert the 2N3904 transistor into the socket on the AC/DC Electronics Lab Board. The transistorhas a half-cylinder shape with one flat side. The socket has three holes labeled “E” (emitter), “B”(base) and “C” (collector). When held so the flat side of ...

105 012-05892A AC/DC Electronics Laboratory ® ➄ Connect one five inch wire lead from the component spring next to the emitter terminal of thetransistor to the component spring at the top left corner of the component area of the AC/DC labboard. ➅ Connect one 1 k Ω resistor from the component spring a...

106 AC/DC Electronics Laboratory 012-05892A ® ➤ NOTE: The negative end of the 10 µ F capacitor has a slight bump. The positive end has an indentation around it. There is a band on the side of the capacitor with arrows that point to thenegative end. > > 10 µ F capacitor 22 k Ω resistor negative...

107 012-05892A 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) of OUT = ________ V Voltage (peak) of A = ________ V Analyzing the Data ➀ Use the values you recorded to calculate the ratio of input voltage (Vo...

109 012-05892A AC/DC Electronics Laboratory ® Experiment 20: Induction – Magnet Through a Coil EQUIPMENT NEEDED: – Computer and Science Workshop™ Interface– Voltage Sensor (CI-6503)– AC/DC Electronics Lab Board (EM-8656)– Alnico bar magnet (EM-8620)– OPTIONAL: Photogate (ME-9204A or ME-9498) Purpose...

110 AC/DC Electronics Laboratory 012-05892A ® ➂ In the Physics Folder of the Science Workshop Experiment Library, open the document: Macintosh: “P47 Induction-Magnet” / Windows: “P47_INDU.SWS” The document opens with a Graph display of Voltage (V) versus Time (sec). ➤ NOTE: For quick reference, see ...

111 012-05892A AC/DC Electronics Laboratory ® ➤ NOTE: The bar magnet will be dropped through the coil. Make sure that the magnet does notstrike the floor, or it may break. Part III: Data Recording ➀ Hold the magnet so that the south end is about 5 cm above the coil. If you are using the AlnicoBar Ma...

112 AC/DC Electronics Laboratory 012-05892A ® Questions ➀ Is the incoming flux equal to the outgoing flux? ➁ Why is the outgoing peak higher than the incoming peak? ➂ Why are the peaks opposite in direction? Optional Repeat the data recording and data analysis procedures for the following: ➀ Tape tw...

113 012-05892A AC/DC Electronics Laboratory ® Appendix: Tips and Troubleshooting Correct Circuit, Doesn’t Work • Check to see if the circuit is indeed connected cor- rectly and completely. • Check to see if the battery is giving full voltage. • Check to see if each wire is making contact with the sp...

114 AC/DC Electronics Laboratory 012-05892A ® Wires The Circuits Experiment Board can be used with a largevariety of wire types and sizes. We recommend 20 or 22gauge solid wire with colorful insulation. This will helpstudents to follow their work more easily and minimizedifficulties in making the tr...

115 012-05892A AC/DC Electronics Laboratory ® Teacher's Guide (Experiments 1-10) Exp 1 - Circuits Experiment Board ➀ ➁ Reversing things at either end had no effect. ➃➄ There are two different ways of putting two lamps into the circuit: parallel and serial. Parallel: With this method, the lights will...

116 AC/DC Electronics Laboratory 012-05892A ® Exp 3- Ohm's Law Procedure ➁ - ➅ )Warn the students to be particularly careful when setting up the multimeter to measure current. Attach-ing an ammeter the wrong way can damage the meter. Data Processing Resistance Current Voltage V/R % difference 100 0....

117 012-05892A AC/DC Electronics Laboratory ® Procedure Equal Resistors: Series measurement Resistance Voltage 1 100 0.523 2 100 0.528 3 100 0.527 12 200 1.051 23 200 1.055 123 300 1.578 Parallel measurement Resistance Voltage 1 33.33 1.565 2 33.33 1.565 3 33.33 1.565 123 33.33 1.565 Combination mea...

118 AC/DC Electronics Laboratory 012-05892A ® Exp 6- Currents in Circuits ➤ NOTE: The resistors used were: R 1 = 100 Ω R 2 = 330 Ω R 3 = 560 Ω These are the same resistors as were used in theprevious lab, and some of the data here originates inlab 5. Procedure Series: The current was the same—1.5 mA...

119 012-05892A AC/DC Electronics Laboratory ® Analysis First circuit: ➀ node (1,3): 0.1 mA node (1,2,5): 0.0 mA node (3,4,5): -0.1 mA node (2,4): 0.0 mA ➁ loop (1,5,3): 0.001 V loop (1,2,4,3): 0.001 V loop (5,2,4): 0.000 V loop (batt,1,2): 0.001 V loop (batt,3,4): 0.000 V loop (batt,1,5,4): 0.001 V ...

120 AC/DC Electronics Laboratory 012-05892A ® Exp 9- Diodes Analysis The diode acts as a one-way valve for electricity. Currentcan flow in one direction, but not in the other. Extensions ➀ A zener diode would be similar to the 4007, exceptthat there would be a breakdown point on the reversebiasing, ...

121 012-05892A AC/DC Electronics Laboratory ® Technical Support Feed-Back If you have any comments about this product or thismanual please let us know. If you have any suggestionson alternate experiments or find a problem in the manualplease tell us. PASCO appreciates any customer feed-back. Your in...