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A capacitor is chared to store an energy...

A capacitor is chared to store an energy `U`. The charging battery is disconnected. An edentical is now connected to the first capacitor in parallel. The energy in each capacitor is now.

A

`(U)/(2)`

B

U

C

`(U)/(4)`

D

`3U)/(2)`

Text Solution

Verified by Experts

The correct Answer is:
C
`V=(C_(1)V_(1)+C_(2)V_(2))/(C_(1)+C_(2)),U=(1)/(2)(C_(1)+C_(2))V^(2)`.
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