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A capacitor of capacitance 5µF is charged with 5µC charge its capacitance is changed to 2µF by some external agent.

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in Physics by (76.5k points)

A capacitor of capacitance 5µF is charged with 5µC charge its capacitance is changed to 2µF by some external agent. The work done by external agent is:

(1) 40.5 x 10-7 J

(2) 42.5 x 10-7 J

(3) 37.5 x 10-7 J

(4) 30.5 x 10-7 J

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1 Answer

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by (71.4k points)

Correct option: (3) 37.5 x 10-7 J

Explanation:

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