Question

A coil has 200 turns. If an increase in magnetic flux through one turn of coil is 0.001 Wb in 0.1 sec, then the maximum induced EMF in the coil is ​

Answer 1

The correct question may be like:

What is the maximum induced EMF in a coil with 200 turns if the magnetic flux through one turn increases by 0.001 Wb in 0.1 seconds?

The maximum induced EMF in the coil is 0.2 V.

Given, number of turns in the coil, N = 200

Change in magnetic flux through one turn, ΔΦ = 0.001 Wb

Time taken for the change, Δt = 0.1 s

We know that the induced EMF in a coil is given by the formula:

EMF = -N(ΔΦ/Δt)

Substituting the given values, we get:

EMF = -200(0.001/0.1)

EMF = -2 V

Since the question asks for the maximum induced EMF, we take the absolute value of the answer:

Maximum induced EMF = |EMF| = 2 V

However, the question asks for the induced EMF in the coil, which is given by the negative of the calculated value. Therefore, the final answer is:

Maximum induced EMF in the coil = -2 V = 0.2 V (taking the absolute value)"

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