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A condenser has a capacity of 2muF and i...

A condenser has a capacity of `2muF` and is cahrged to a potential of 50 V. the energy stored in it is

A

`25xx10`erg

B

`25xx10^(3)` erg

C

`25xx10^(5)` erg

D

`25J`

Text Solution

Verified by Experts

The correct Answer is:
B
`E=(1)/(2)CV^(2)=(1)/(2)xx2xx10^(-6)xx2500`
`=25xx10^(-4)J=25xx10^(3)erg" "[because1J=10^(7)erg]`
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