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Two identical capacitors are joined in p...

Two identical capacitors are joined in parallel, charged to a potential `V` and then separated and then connected in series i.e. the positive plate of one is connected to negative of the other

A

The charges on the free plates connected together are destroyed

B

The charges on the free plates are enhanced

C

The energy stored in the system increases

D

The potential difference in the free plates becomes 2V

Text Solution

Verified by Experts

The correct Answer is:
D
`Q_1 =CV and Q_2= CV` Applying charge conservation –
`CV_1+CV_2 =Q_1+Q_2`
`implies CV_1 + CV_2 =2CV implies V_1+V_2=2V`
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