Question 291: 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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