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If the energy stored in a condenser of c...

If the energy stored in a condenser of capacity 8 `muF` is 4 J, what is the cahrge on the condenser?

A

`2xx10^(-3)C`

B

`4xx10^(-3)C`

C

`6xx10^(-3)C`

D

`8xx10^(-3)C`

Text Solution

Verified by Experts

The correct Answer is:
D
`E=(1)/(2) QV=(1)/(2)(Q^(2))/(C)`
`therefore Q^(2)=2EC=2xx4xx8xx10^(-6)`
`therefore Q=8xx10^(-3)C`
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