When induced emf in inductor coil is \( 50 \% \) of its maximum value then stored energy in indu...

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When induced emf in inductor coil is \( 50 \% \) of its maximum value then stored energy in inductor coil in the given circuit at that instant will be
(a) \( 2.5 \mathrm{~mJ} \)
(b) \( 5 \mathrm{~mJ} \)
(c) \( 15 \mathrm{~mJ} \)
(d) \( 20 \mathrm{~mJ} \)
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