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If the coefficient of mutual induction o...

If the coefficient of mutual induction of the primary and secondary coils of an induction coil is `6H` and a current of `5A` is cut off in `1//5000` second, calculate the emf induced in the secondary coil.

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`|e| = M(dI)/(dt)`, `e = 6 xx (5)/(1//5000)V = 15 xx 10^(4)V`
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