1. The figure below shows the resistors -a combination of series and parallel. We can consider R1 to be the resistance of wires leading to R2 and R3. (a) Find the total resistance. (b) What is the IR drop in R1? (c) Find the current 12 through R2. (d) What power is dissipated by R2? V, = ? 1.00 오 R, | = ? 12.0 V ½ = ? R R 6.00 2 13.0 2

1. The figure below shows the resistors -a combination of series and parallel. We can consider R1 to be the resistance of wires leading to R2 and R3. (a) Find the total resistance. (b) What is the IR drop in R1? (c) Find the current 12 through R2. (d) What power is dissipated by R2? V, = ? 1.00 오 R, | = ? 12.0 V ½ = ? R R 6.00 2 13.0 2

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter20: Electric Current, Resistance, And Ohm's Law

Section: Chapter Questions

Problem 14CQ: The power dissipated in a resistor is given by P = V2/R, which means power decreases if resistance...

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