1. The problem statement, all variables and given/known data [PLAIN]http://img695.imageshack.us/img695/206/95144436.jpg [Broken] 2. Relevant equations Hand rules 3. The attempt at a solution This is a practice question with the answer already given in the diagram. I know how to draw the coils and use the left hand rule to find the poles. I do not understand b), though. I know the two north poles repel, but why does A move forward instead of backwards? Thanks.