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The plates of a parallel plate capacito...

The plates of a parallel plate capacitor have an area of `90cm^(2)` each and are separated by a `2mm` The capacitor is charged by connecting it to a `400V` supply.Then the density of the energy stored in the capacitor ..........?

A

`0.113Jm^(-3)`

B

`0.117Jm^(-3)`

C

`0.152Jm^(-3)`

D

`0.226 Jm^(-3)`

Text Solution

Verified by Experts

The correct Answer is:
B
`U = (1)/(2) epsi_(0)E^(2), E = (V)/(d)`
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