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A parallel plate capacitor having a plat...

A parallel plate capacitor having a plate separation of `2mm` is charged by connecting it to a `300v` supply. The energy density is

A

`0.01 J//m^(3)`

B

`0.1 J//m^(3)`

C

`1 J//m^(3)`

D

`10 J//m^(3)`

Text Solution

Verified by Experts

The correct Answer is:
B
`u=1/2in_(0)KE^(2)`
`=(8.85xx10^(-12))/2xx1xx(300/(2xx10^(-3)))^(2)`
`=0.1J//m^(3)`
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