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Questions  

A condenser of capacity 50 μF is charged to 10 volts. Its energy is equal to

a
2⋅3×10−3 joule
b
1.2×10−8 joule
c
5×10−3 joule
d
25×10−4 joule

detailed solution

Correct option is D

E=12 CV2=12×50×10−6×(10)2   =25×10−4 joule

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