Wires carrying current are subject to a force in the magnetic field given by
In equation (8), L is the length of the wire.
Example:
A .35m wire is carrying a current of 6A through a magnetic field of magnitude
N/Am . The wire is traveling to the right of the computer screen and the field is directed into the screen. What are the magnitude and direction of the resulting force?
Since the current direction and the field direction are at a 90¬° angle, equation (8) reduces to