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Lenz's Law

The mutual in...

Question

The mutual inductance between two coils when a current of $5$ A changes to $10$ A in $1$ s and induces an emf of $100$ m V in the secondary is ______

20

m H

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Solution

The correct option is A $20$ m H
Mutual inductance $= M = \frac{e m f}{Δ I / t}$

$= \frac{100 m V}{10 - 5}$

$= 20 m H$

Answer-(A)

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