Question

A long wire carrying 4.50 A of current makes two 90 degree bends, as shown in the figure . The bent part of the wire passes through a uniform 0.230 T magnetic field directed as shown in the figure and confined to a limited region of space.

Part A 
Find the magnitude of the force that the magnetic field exerts on the wire.
F =0.694 N

Part B
Find the direction of the force that the magnetic field exerts on the wire.
\phi =63.4 degrees clockwise from right direction

Answer 1