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A capacitor is charged with a battery an...

A capacitor is charged with a battery and energy stored is U. After disconnecting battery another capacitor of same capacity is connected in parallel with it. Then energy stored in each capacitor is:

A

`3U//2`

B

`U`

C

`U//4`

D

`U//2`

Text Solution

Verified by Experts

The correct Answer is:
C
`U=1/2CV^(2)`
Potential of each capacitor now is `V/2`.
`U'=1/2C(V/2)^(2)=U/4`.
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