The capacity of a condenser is 4×10−6 farad and its potential is 100 volts. The energy released on discharging it fully will be
0.04 J
0.02 J
0.025 J
0.05 J
A
0.02 J
B
0.04 J
C
0.025 J
D
0.05 J
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Solution
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Energy released on descharging the capacitor E=12CV2 =12×4×10−6×(100)2=0.02J
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