Lab 8 - Superposition Theorem v2

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Algonquin College *

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9104

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Electrical Engineering

Date

Apr 3, 2024

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docx

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3

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ELN9104 Lab 8 – Superposition Theorem Purpose: The purpose of this lab is to prove the Superposition Theorem. Materials: 1 kΩ resistor 5.6 kΩ resistor 3.3 kΩ resistor Procedure: 1. During this lab we will define the following measurements as positive: 2. During your prelab, you were asked to calculate the voltage across each resistor and the current going through each resistor for the circuit shown in Schematic 1, transfer those values to Table 1. Use positive and negative notation as defined in step 1. Table 1: calculated values R T V 1 V 2 V 3 I 1 I 2 I 3 V S1 3Ω 3.2v 8.2v 8.3v 3.8v 1.5mA 2.4 mA V S2 4Ω 2v 6v -6v 2v -1.1 mA 6mA Vector sum 8.8v 14.2v 2.3v 5.8v 0.4mA 8.4mA 3. Measure the resistance of each resistor and record the values in Table 2. Table 2: resistor values Measured values R 1 : 1 kΩ 0.996 kΩ R 2 : 5.6 kΩ 5.560 kΩ R 3 : 3.3 kΩ 3.280 kΩ Current: showing positive direction Voltage: showing positive positions V S2 V S2 V S1 V S1
ELN9104 Lab 8 4. Set up the circuit in Schematic 1. 5. Do not connect V S2 , instead place a jumper wire as shown in Schematic 2. 6. With the jumper wire in place but V S1 disconnected, measure R T and record the measurement in Table 3. 7. Measure the current through each resistor, the voltage across each resistor, and record the measurements in Table 3. Table 3: measured values R T V 1 V 2 V 3 I 1 I 2 I 3 V S1 3.45Ω 1.6v 1.6v 6.3v 1.59 mA 0.3 mA 1.93 mA V S2 4.13Ω 3.8v -8.2v 8.1v 3.85 mA -1.44 mA 2.46 mA Vector sum (calculated) 7.58Ω 5.4v 6.6v 14.4v 5.44 -1.14 4.39 V S1 and V S2 8. Disconnect V S1 and set up the circuit shown in Schematic 3. 9. With the power supply disconnected put the jumper wire in place, measure R T . 10. Connect the power supply as shown in Schematic 3 and take the current and voltage measurements for each resistor. Note: be consistent with the way you measure current and voltage. You must measure by placing your probes the same way you placed them in step 7. Record positive values as positive and negative values as negative in Table 3. Schematic 3 V S2 V S1 V S1 V S2
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