A current of 20 A in the primary part of a circuit is reduced to zero in 0.001 s.
If the emf induced in the secondary part of tge circuit is 2000 V, then find the coefficient of mutual induction.

Explanation

To find the coefficient of mutual induction (M) in the given problem, we can use the formula for induced EMF due to mutual induction. The formula is:

\[ E = -M \frac{\Delta I}{\Delta t} \]

Where:
- \(E\) is the induced EMF in the secondary circuit (2000 V),
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