A capacitor of capacitance of `10 mu F` is charged to 10 V . The energy stored in it is

Options

A. `100 mu J`
B. `500 mu J`
C. `1000 mu J`
D. `1 mu J`

Answer

B

Explanation

Here , `C = 10 mu F = 10 xx 10^(-6) F`
V = 10 V
The energy stored in a capacitor is
`U = (1)/(2) CV^(2)`
`= (1)/(2) xx (10 xx 10^(-6) F) (10)^(2)`
`= 500 xx 10^(-6) J = 500 mu J`