A permanent horseshoe magnet is mounted so that the magnetic field lines are vertical. If a
student passes a straight wire between the poles and pulls it toward herself, the current
flow through the wire is from right to left. Which is the north pole of the magnet?
The following image is obtained using the right hand rule. <img src="../../..//assignments/uploaded_files/static/05/41/05415832a461fad9b9b830a9d34f9218.bmp" title="" alt="">