If the current through an inductor increases from $2 \ A$ to $3 \ A$,the magnetic energy stored in the inductor increases by: (in $\%$)

The expression for the magnetic energy stored in a solenoid of length $L$, in terms of magnetic field $B$ and area $A$ is

Which of the following statements are correct?
$(a)$ An inductor stores energy in the form of a magnetic field.
$(b)$ $A$ capacitor stores energy in the form of an electric field.
$(c)$ An inductor stores energy in the form of both electric and magnetic fields.
$(d)$ $A$ capacitor stores energy in the form of both electric and magnetic fields.

The energy stored in an inductor of self-inductance $L$ henry carrying a current of $I$ ampere is:

In the figure, the magnetic energy stored in the coil is:

If the current flowing through a coil is reduced by $50 \%$,then the energy stored in the coil will