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Lab 216_Mar 10

# Lab 216_Mar 10 - Figure for Experiment 2a 2 The current...

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Part I. Circuits with fixed voltage nodes Experiment 1a: Single node circuit Figure for Experiment 1a: 1. Calculated current from the 12 volt terminal: 12 12 .0012 10000 v c V V I A R = = = 2. Calculated current from the 5 volt terminal: 4 5 5 5 8.929 10 5600 v v b V V I A R - = = = × 3. Measured current from 12 volt terminal: 12 .00195 v I A = Measured current from 5 volt terminal: 5 .000889 v I A = 4. Calculated current entering the ground: 4 12 5 .0012 8.929 10 .002093 com v v I I I A - = + = + × = Measured current entering the ground: .00212 com I A = The measured current entering the ground is slightly more than the calculated current. Experiment 1b: Triple node circuit Figure for Experiment 1b:

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2. Calculated current flowing from the 12 volt terminal to the 5 volt terminal: 1 2 1 2 1 12 2 1 2 0 12 5 0.001519 5600 5600 12 0.0012 10000 0.001519 0.0012 .002718 A B A B v C com V IR V IR V V I A R R V I A R I I I A + + + = + + = - = - = - + + = = = = + = + = 3. Measured current flowing from the 12 volt terminal to the 5 volt terminal: 1 2 .00124 .00098 .00227 com I A I A I A = = = Part II. Analysis of Multi-node Circuits using Kirchhoff’s Junction Rule Experiment 2a: Single current case
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Unformatted text preview: Figure for Experiment 2a: 2. The current entering point A is equal to the current leaving it 12 12 0.0012 10000 v in out C V v I A I R = = = = Ω Measured current at point A: .00077 A I A = Thus the calculated voltage at point A relative to the ground is: (0.0012 )(5600 ) 6.72 A out A V I R A = = Ω = 3. The measured voltage at point A relative to the ground is: 4.3_ A V Volts = 2 Experiment 2b: Multi-current case Figure for Experiment 2b: 1. Calculated voltage at point A relative to the ground: ( 29 1 2 3 12 5 12 5 12 5 5600 10.84 _ 10000 6800 v v A B A v v A A B I I I V V V R R R V V V R Volts R R + = + = = + = + = 2. Expression for the voltage of A: 12 5 v v A B A V V V R R R + = 3. Expression solved for voltage at A: ( 29 12 5 v v A A B V V V R R R = + 4. Measured value for the voltage at point A: 9.18_ A I Volts = 3...
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