The figure above shows a rectangular loop of wire being pulled through the gap b

Question

The figure above shows a rectangular loop of wire being pulled through the gap between two permanent magnets. In the gap, there is a uniform magnetic field B. If the loop is pulled at constant acceleration from a region of zero magnetic field into a region of a uniform magnetic field, the current induced in the loop during this process will be some constant value that is not zero. will be zero. will increase exponentially with time. will increase linearly with time. will increase linearly with the square of the time.

Explanation / Answer

As the Loop is withdraw with Acceleration , So the the Current must increase

Because

Induced EMF = - Nd/dt

= NBA/t

So Due to Acceleration , A value increases with time as change increases

So more EMF will be Induced , So more Induced Current

As the Acceleration is Constant

So the Current will increase linearly with time

So

D option is Correct

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