In this simulation you examine the magnetic field of either a permanent magnet or the field produced by a flow of current in a coil. Which end of the compass points towards the north pole of the magne...In this simulation you examine the magnetic field of either a permanent magnet or the field produced by a flow of current in a coil. Which end of the compass points towards the north pole of the magnet? Is your description of the magnetic field different from the case of moving the compass? What do you notice about the magnetic field of the earth? How does the magnetic field of the coil compare to the magnetic field of the bar?