The magnetic energy stored in an inductor of inductance $4\,\mu H$ carrying a current of $2\,A$ is:

$A$ coil of resistance $5 \Omega$ and inductance $4 H$ is connected to a $10 \ V$ battery. The energy stored in the coil is: (in $J$)

$A$ coil has an inductance of $2 \, H$ and resistance of $4 \, \Omega$. $A$ $10 \, V$ potential difference is applied across the coil. The energy stored in the magnetic field after the current has built up to its equilibrium value will be $.......... \times 10^{-2} \, J$.

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

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

If a current of $4 \ A$ produces a magnetic flux of $3 \times 10^{-3} \ Wb$ through a coil of $400$ turns,the energy stored in the coil will be: (in $J$)