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.


T/F: Upon entering the field, a clockwise current flows in the loop.
T/F: When entering the field the coil experiences a magnetic force to the right.
T/F: While the loop is entirely in the field, the emf in the loop is zero.
T/F: When leaving the field the coil experiences a magnetic force to the left.

Explanation / Answer

F: Upon entering the field, a clockwise current flows in the loop.
F: When entering the field the coil experiences a magnetic force to the right.
T: While the loop is entirely in the field, the emf in the loop is zero.
T: When leaving the field the coil experiences a magnetic force to the left.

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