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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 change in energy st ored is `1/2 CV(2) 1/K 1`

B

The charge on the capacitor is not conserved

C

The potential difference between the plates decreases K times.

D

The energy stored in the capacitor decreases K times..

Text Solution

Verified by Experts

The correct Answer is:
B
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