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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 difference between the plates decreases K times

B

The energy stored in the capacitor decreases K times

C

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

D

The charge on the capacitor is not conserved

Text Solution

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The correct Answer is:
D
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