A square loop of wire with a small resistance Is moved with constant speed from

Question

A square loop of wire with a small resistance Is moved with constant speed from a field free region into a region of uniform B field (B is constant in time) and then back into a field free region to the right. The self-inductance of the loop is negligible. While the loop Is entirely in the field, the emf in the loop Is zero. When leaving the field, the call experiences a magnetic force to the right. Upon entering the field, a counterclockwise current flow in the loop. When entering the field the coil experiences a magnetic force to the right.

Explanation / Answer

emf across the loop e = N A B

while the loop is entirley in the field, the emf is Zero ---TRUE

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magnetic force F = q v B sin theta

Diection of magnetic field and Magnetcif force is obtained from Fleming left hand rule

when leaving the field, Force acts in upward directio

so it is FALSE

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Upon Enetering the field,

Current is Counter clock wise TRUE

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When Enterng the field Force will be towards downeards

so FALSE it is

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