3.3 Lab Assignment Series-Parallel Circuits

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Electrical Engineering

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Apr 3, 2024

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College of Technology 2016 EET113 Electric Circuits I Lab# 5 Series-Parallel Circuits EET113_W3_LabAssignment5 I. Objective : 1. Build a series-parallel circuit. 2. Verify the validity of KVL and KCL 3. Verify ohm’s law, the voltage divider, and the current divider rules II. Parts List : 1. Resistors: 470 Ω, 1 k  , 3.3 k  and 10 k  2. Variable Power Supply 3. DMM III. Procedures : Part A : 1. Connect and simulate the circuit, shown below in Figure 1, in MultiSim. R1 10kΩ R2 3.3kΩ R3 1.0kΩ V1 12V R4 470Ω Figure 1 A series-parallel electric circuit 2. Measure the voltage across the power supply, V s = ___12 V____ 3. Measure the voltage across the resistor, V 470Ω = __4.788 V_____ 4. Measure the voltage across the resistor, V 1kΩ = __7.212 V_____ 5. Measure the voltage across the resistor, V 3.3kΩ = __7.212 V_____ 6. Measure the voltage across the resistor, V 10kΩ = __7.212 V_____ 7. Measure the current flowing in the circuit, I T = __1.2 MA_____ 8. Measure the current through each resistor. Table 1 Current readings Resistor Current 470 Ω 16.95 mA 1 k  , 25.532mA 3.3 k  25.532mA 1

College of Technology 2016 10 k  25.532mA 9. Verify Kirchhoff’s Current law, KCL. 10. Verify KVL for each outlined loop below 11. Record your calculations for each loop in Table 2 below R1 10kΩ R2 3.3kΩ R3 1.0kΩ V1 12V R4 470Ω Loop 1 2

College of Technology 2016 R1 10kΩ R2 3.3kΩ R3 1.0kΩ V1 12V R4 470Ω Loop 2 3

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College of Technology 2016 R1 10kΩ R2 3.3kΩ R3 1.0kΩ V1 12V R4 470Ω Loop 3 Figure 2 A parallel electric circuit Table 2 KVL calculation for different loops ∑V = 0 Loop 1 8.163 V+3.837 V Loop 2 7.422V + 4.578 V Loop 3 7.212 V + 4.788 V Figure 2 KVL Loop Verification 4

College of Technology 2016 Lab Report Abstract To demonstrate KVL and KCL I will build a series/parallel circuit while observing the Divider rules and measuring Ohms Introduction Procedure I created the circuit of 4 resisters with 1 in series and the other 3 in parallel. Multimeters (DMM) were then placed across the loads to measure the different values observed. Analysis & Results Please see the value charts and screenshots above for reference. Conclusion KCL and KVL have been verified and is true. 5