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.

For each statement select T True, F False. (If the first is T and the rest F, enter TFFFF. )

A) Upon entering the field, a clockwise current flows in the loop.

B) While the loop is entirely in the field, the emf in the loop is zero.

C) When entering the field the coil experiences a magnetic force to the right.

D) When leaving the field the coil experiences a magnetic force to the left.

E) Upon leaving the field, a clockwise current flows in the loop.

Explanation / Answer

A) False, Anticlockwise current

B) True, the emf will be zero, as there will be no change in magnetic flux

C) False, to the left

D) False, to the right

E) True, clockwise current will be induced

FTFFT

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