If $V$ denotes the potential difference across the plates of a capacitor of capacitance $C$,the dimensions of $CV^2$ are

The capacitance of a capacitor is $4 \times 10^{-6} \ F$ and it is charged to a potential difference of $100 \ V$. The energy required to completely discharge it is . . . . . . $J$.

If the charge on a body is increased by $2 \ C$,the energy stored in it increases by $21 \%$. The original charge on the body in coulomb is:

If the distance between the plates of a capacitor having capacity $C$ and charge $Q$ is doubled,then the work done will be:

The energy stored in a capacitor is in the form of

The energy stored in the capacitor is