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Question

(C) According to Faraday's law of electromagnetic induction,the induced electromotive force $(EMF)$ or potential difference is given by the formula: $

Vedclass · Accepted Answer

The resistance of the coil

Vedclass · Answer

(C) According to Faraday's law of electromagnetic induction,the induced electromotive force $(EMF)$ or potential difference is given by the formula: $e = -N \frac{d\phi}{dt}$.Here,$N$ is the number of turns,and $\frac{d\phi}{dt}$ is the rate of change of magnetic flux.$1$. The induced $EMF$ depends on the number of turns $(N)$.$2$. The rate of change of flux $(\frac{d\phi}{dt})$ depends on the magnetic moment of the magnet (which determines the strength of the magnetic field) and the speed of approach of the magnet.$3$. The resistance of the coil affects the induced current $(I = \frac{e}{R})$,but it does not affect the induced potential difference $(e)$ itself.Therefore,the induced potential difference does not depend on the resistance of the coil.

The induced potential difference produced in a coil when a magnet is inserted into it does not depend upon:

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