Question 278: Electromagnetic Induction

Question

The mutual inductance of a pair of coils, each of '$N$' turns, is '$M$' henry. If a current of '$I$' ampere in one of the coils is brought to zero in '$t$' second, the e. m. f. induced per turn in the other coil in volt is

Accepted Answer

Emf induced due to mutual inductance per coil,
$\mathrm{e}=\frac{\mathrm{M} \Delta \mathrm{I}}{\Delta \mathrm{t}}$
Here, the current changes from I to zero in time $\mathrm{t}$ seconds.
$	herefore \quad e=\frac{M I}{t}$

Answer

$\frac{\mathrm{MI}}{\mathrm{t}}$

Answer

$\frac{\mathrm{NMI}}{\mathrm{t}}$

Answer

$\frac{\mathrm{NM}}{\mathrm{It}}$

Answer

$\frac{\mathrm{MI}}{\mathrm{Nt}}$

Electromagnetic Induction

The mutual inductance of a pair of coils, each of 'N' turns, is 'M' henry. If a current of 'I' ampere in one of the coils is brought to zero in 't' second, the e. m. f. induced per turn in the other coil in volt is

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