When the switch is closed in a circuit, the wire between the poles of the horseshoe magnet deflects upward. From this you can conclude that the left end of the magnet is

----
-- --
-- --
-- --

A) a magnetic dipole.
B) not contributing to the wire's deflection.
C) a magnetic monopole.
D) a south magnetic pole.
E) a north magnetic pole

2 answers

look up the right hand rule on magnetic field, current, and force
Thanks! I did and originally got E)north magnetic pole but....now I'm second guessing myself that it is D)South magnetic pole..????!?!?!?