R, R b a 20 Ω I, 0.5 2 62 E3 12 V E1 18 V E2 3.0 V 0.5 2 0.25 2 E4 R4 15 2 e 0.75 2 24 V

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Find I3 in the circuit below. Use units (A), please. 

R,
b
a
20 2
1,
8Ω
12
0.5 2
R2
E3
12 V
E,
18 V
g
E2
3.0 V
3
0.5 2
0.25 2
E4
R4
15 2
0.75 2
24 V
Transcribed Image Text:R, b a 20 2 1, 8Ω 12 0.5 2 R2 E3 12 V E, 18 V g E2 3.0 V 3 0.5 2 0.25 2 E4 R4 15 2 0.75 2 24 V
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Step 1

Apply Kirchhoff’s current rule at junction b to relate the currents.

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