- A compass needle is placed above the wire points with its N-pole toward the east. In what direction is the current flowing?
- If a compass is put underneath the wire, in which direction will the needle point?
I have quite a few problems on this for my Physics homework tonight, and I am utterly confused. The book says nothing about direction besides stating the right hand rule. What confuses me is that the compass needle points with its N-pole towards the east. So would that change the direction of the current? And then also, what is the difference between the magnetic field above and below the wire?