A Square Loop of Current-Carrying Wire with Edge Length a Is

Multiple Choice

A square loop of current-carrying wire with edge length a is in the xy plane, the origin being at its center.Along which of the following lines can a charge move without experiencing a magnetic force?

A) x = 0, y = a/2
B) x = a/2, y = a/2
C) x = a/2, y = 0
D) x = 0, y = 0
E) x = 0, z = 0