Two Long Parallel Wires Are Separated by 4

Multiple Choice

Two long parallel wires are separated by 4.0 mm.The current in one of the wires is twice the other current.If the magnitude of the force on a 0.5-m length of one of the wires is equal to 9.0 µN,what is the smaller of the two currents?

A) 0.11 A
B) 0.22 A
C) 0.42 A
D) 0.84 A
E) 1.7 A