**Background information**If a current-carrying conductor is placed perpendicular to the magnetic field of a magnet, there will be a force acting on the conductor.

__Right Hand Rule #3__

__Parallel conductors__When two current-carrying conductors are parallel to each other, they would either attract or repel each other. If the two currents are in the same direction, the two conductors will attract; if the two currents are in opposite directions, the two conductors will repel.

**Motor Force**The force that a magnet exerts on a current-carrying conductor can be found using the following equation:

B is the strength of the magnetic field that is perpendicular to the current

I is the current in amperes

L is the length of the conductor (calculated by number of coils multiplied by the length of each coil)