Two circuits have mutual inductance of \( 0.1 \mathrm{H} \). What average e.m.f. is induced in o...
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Two circuits have mutual inductance of \( 0.1 \mathrm{H} \). What average e.m.f. is induced in one circuit when the current in the other circuit changes from 0 to \( 20 \mathrm{~A} \) in \( 0.02 \mathrm{~s} \) ?
(A) \( 240 \mathrm{~V} \)
(B) \( 100 \mathrm{~V} \)
(C) \( 230 \mathrm{~V} \)
(D) \( 300 \mathrm{~V} \)
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