If the current 3.0 A flowing in the primary coil is made zero in 0.1 sec, the emf induced in the secondary coil is 1.5 volt. The mutual inductance between the coils is
A
0.05 H
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B
0.5 H
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C
0.1 H
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D
0.2 H
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Solution
The correct option is A 0.05 H Einduce=−Mdidt1.5=M×30.1⇒M=0.05H