The plane of a rectangular loop of wire with a width of
5.0 cm and a height of 8.0 cm is parallel to a
magnetic field of magnitude 0.21 T . The current passing
through the loop is 6.2 A.
a-Find the torque acting on the loop.
b-Find the magnetic moment of the loop.
c-Find the maximum torque that can be obtained with the
same total length of wire carrying the same current in this
magnetic field.