Two Current-Carrying Wires Are Perpendicular to Each Other

Multiple Choice

Two current-carrying wires are perpendicular to each other.The current in one flows vertically upward and the current in the other flows horizontally toward the east.The horizontal wire is 1 m south of the vertical wire.What is the direction of the net magnetic force on the horizontal wire?

A) north
B) east
C) west
D) south
E) There is no net magnetic force on the horizontal wire.