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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 change in energy `(1)/(2) C_(0)V^(2) (K-1)`

D

The change in energy `(1)/(2) C_(0)V^(2) ((1)/(K) -1)`

Text Solution

Verified by Experts

The correct Answer is:
C
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  1. A parallel plate air capacitor of capacitance C is connected to a cell...

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