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A parallel plate air capacitor of capaci...

A parallel plate air capacitor of capacitance `C` is connected to a cell of `emF V` and then disconnected from it. A dielectric slab of dielectric constant `K`, which can just fill the air gap of the capacitor, is now inserted in it. Which of the following is incorrect ?

A

The potential differnce between the plates decreases K times.

B

The energy stroed in the capacitor decreases K times.

C

The change in energy stored is `(1)/(2)CV^(2)((1)/(K)-1)`

D

The charge on the capacitor is not conserved.

Text Solution

Verified by Experts

The correct Answer is:
D
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