Two insulated wires, each 4.46 m long, are taped together to form a two-wire unit that is 4.46 m long. One wire carries a current of 8.32 A; the other carries a smaller current i in the opposite direction. The two-wire unit is placed at an angle of 69.1° relative to a magnetic field whose magnitude is 0.456 T. The magnitude of the net magnetic force experienced by the two-wire unit is 1.18 N. What is the current i?
a) 3.22 A
b) 4.56 A
c) 2.81 A
d) 5.12 A