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Energy Stored in an Inductor
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The magnetic energy stored in an inductor of inductance $4\ \mu H$ carrying a current of $2\ A$ is:A $8\ \mu J$B $4\ \mu J$C $4\ mJ$D $8\ mJ$
$U=\frac{1}{2}LI^2=8\ \mu J$.
Magnetic energy stored in an inductor $=\frac{1}{2}LI^2=\frac{1}{2}\times4\times10^{-6}\times(2)^2=8\ \mu J$