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A parallel plate capacitor (without diel...

A parallel plate capacitor (without dielectric) is charged by a battery and kept connected to the battery. A dielectric salb of dielectric constant `'k'` is inserted between the plates fully occupying the space between the plates. The energy density of electric field between the plates will:

A

increase `k^(2)` times

B

decrease `k^(2)` times

C

increas `k` times

D

decrease `k` times

Text Solution

Verified by Experts

The correct Answer is:
C
Energy density `=1/2kepsilon_(0)E^(2)`
Since the cell remains connected, V remains unchanged (and therefore E remains unchanged)
`implies` Energy density will increase k times.
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