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The capacity of a condenser is 4 x 10-6 farad and its potential is 100 volts. The energy released on discharging it fully will be

a
0.02 J
b
0.04 J
c
0.025 J
d
0.05 J

detailed solution

Correct option is A

U=12CV2=12×4×10−6×1002=0.02 J

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