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.

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter23: Series And Parallel Circuits

Section: Chapter Questions

Problem 86A

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Question

8. 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.

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