A 1.5-m length of wire carrying 4.5 A of current is oriented horizontally. At that point on

Question:

A 1.5-m length of wire carrying 4.5 A of current is oriented horizontally. At that point on the earth’s surface, the dip angle of the earth’s magnetic field makes an angle of 38o to the wire. Estimate the magnitude of the magnetic force on the wire due to earth’s magnetic field of 5.5 X 10-5 T at this point.