Find the power dissipated when: (a) a current of 5mA flows through a resistance of 20 kn (b) a voltage of 400V is applied across a 120 kn resistor (c) a voltage applied to a resistor is 10 kV and the current flow is 4 mA.

Find the power dissipated when: (a) a current of 5mA flows through a resistance of 20 kn (b) a voltage of 400V is applied across a 120 kn resistor (c) a voltage applied to a resistor is 10 kV and the current flow is 4 mA.

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter17: Current And Resistance

Section: Chapter Questions

Problem 10CQ: Power P0 = I0 V0 is delivered to a resistor of resistance R0. If the resistance is doubled (Rnew =...

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