Question

A coil of 360 turns is linked by a flux of 200 micro weber. if the flux is reversed in 0.01 seconds, then find the emf induced in the coil

Answer 1

Answer:

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Answer 2

The induced emf in the coil is 7.2 volts.

Explanation:

Number of turns in the coil, N = 360

Change in flux, $\Delta \phi=200\ \mu Wb=200\times 10^{-6}\ Wb$

Change in time, $\Delta t = 0.01\ s$

It is required to find the induced emf in the coil. It is given by :

$\epsilon=-N\dfrac{\Delta \phi}{\Delta t}\\\\\epsilon=360\times \dfrac{200\times 10^{-6}}{0.01}\\\\\epsilon=7.2\ V$

So, the induced emf in the coil is 7.2 volts.

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