Despite the presence of the coil and the bar magnet, the compass points North.
Which end of the bar magnet is closer to the compass? 1 ---Select--- North South
Check all of the following statements that are correct:
At the location of the compass, the magnetic field due to the magnet is equal in magnitude to the magnetic field due to the coil.
At the location of the compass, the net magnetic field is equal to the magnetic field of the Earth.
Because not all parts of the magnet are the same distance from the compass, treating the magnet as a dipole located at the center of the magnet is an approximation.
The magnetic dipole moment of the coil is equal to the magnetic dipole moment of the compass.
It isn't necessary to take the magnetic field of the magnet into account, since the coil is in between the magnet and the compass.
How many turns of wire are in the coil?
number of turns = 3
This question was asked on Mar 18, 2010.
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