- A rectangular loop of
wire is sitting next to a straight wire, as shown in Figure. There is a
current of 2.5 A in both wires. What is the magnitude and direction of the
net force on the loop?
Solution.
-
A circular coil 18.0 cm in diameter and
containing eleven loops lies flat on the ground. The earth’s magnetic field at
this location has magnitude 5.50 x 10-5
T and points into the Earth at an angle of 56.0º below a line pointing due north. If a 7.70-A
counterclockwise current passes through the coil, (a) determine the torque on
the coil, and (b) which edge of the coil rises up, north, east, south, or west?
Solution.
