A wire loop carries a clockwise current in a uniform magnetic field directed into the page. In what direction is the net force on the loop?

1. Left
2. Right
3. Up
4. Down
5. Into the page
6. Out of the page
7. The net force is zero

The net force is zero.

Now we adjust the direction of the magnetic field so it points to the right. In what direction is the net force on the loop now?

1. Left
2. Right
3. Up
4. Down
5. Into the page
6. Out of the page
7. The net force is zero

The net force is always zero on a current-carrying loop in a UNIFORM magnetic field.