Square Loop Of Wire True or False

[shimizua]

Homework Statement

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.

http://capa-new.colorado.edu/msuphysicslib/Graphics/Gtype64/prob24_loop1.gif

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) Upon leaving the field, a clockwise current flows in the loop.
D) When entering the field the coil experiences a magnetic force to the right.
E) When leaving the field the coil experiences a magnetic force to the left.

Homework Equations

k so i assume we use the right hand rule for all of these.

The Attempt at a Solution

The only one that I know for sure to be right is B. Other then that I am a little confused. if you can just give me some hints that would help greatly

 

[shimizua]

Please someone help me

 

[marcusl]

Hint: Look up Lenz's law in your book. It states that the current will flow in a direction to oppose the applied field. (You'll need your right-hand rule to figure it out). Lenz's law will also tell you the answer to D, E if you think about it.