Answered: 0.12 A R1 R3 50 20 R2 10 0 R4 12 0

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter26: Image Formation By Mirrors And Lenses

Section: Chapter Questions

Problem 9CQ

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Determine:
a) total resistance
b) total power
c) current in ?4 applying current divider formula
d) voltage across each resistor
. Three lamps, each with resistance of 0.8 Ω, are connected across a 10-V emf source. L2 and L3 are in parallel, and this combination is in series with L1.
Find the total current if
a) L2 opens b) L1 is shorted out

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