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A parallel plate condenser with a dielec...

A parallel plate condenser with a dielectric of dielectric constant K between the plates has a capacity C and is charged to a potential V volt. The dielectric slab is slowly removed from between the plates and then reinserted. The net work done by the system in this process is

A

`1//2 (K-1)CV^(2)`

B

`CV^(2)(K-1)//K`

C

`(K-1)CV^(2)`

D

zero

Text Solution

Verified by Experts

The correct Answer is:
D
No change in the enegry of the system. Hence, net net work done by the system is zero. Correct choice is (4)
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