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The capacitance of a parallel plate capa...

The capacitance of a parallel plate capacitor is `C_(0)` when the plates has air between them. This region is now filled with a dielectric slab of dielectric constant K and capacitor is connected with battery of EMF E and zero internal resistance. Now slab is taken out, then during the removal at slab :

A

charge CE(k - 1) flows through the cell

B

energy `E^(2)C(k - 1)` is absorbed by the cell.

C

the energy stored in the capacitor is reduced by `E^2C(k-1)`

D

the external agent has to do `1/(2)E^(2)C(k-1)` amount of work to take the slab out.

Text Solution

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The correct Answer is:
A, B, D
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