A capacitor is charged to 200 volt. It has a charge of 0.1 coulomb.

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A capacitor is charged to 200 volt. It has a charge of 0.1 coulomb. When it is discharged, energy liberated will be

Options

(a) 1 J
(b) 4 J
(c) 10 J
(d) 20 J

Correct Answer:

10 J

Explanation:

Energy of capacitor = (1/2) QV

= (1/2) × 0.1 × 200 = 10 J

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Topics: Electrostatics (146)
Subject: Physics (2479)

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