The current passing through a coil of \( 5 \mathrm{H} \) is decreasing at the rate of \( 2 \math...

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The current passing through a coil of \( 5 \mathrm{H} \) is decreasing at the rate of \( 2 \mathrm{~A} / \mathrm{s} \). The e.m.f. developing across the coil is
(A) \( 2.5 \mathrm{~V} \)
(B) \( 10 \mathrm{~V} \)
(C) \( -10 \mathrm{~V} \)
(D) \( -2.5 \mathrm{~V} \)
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