Two parallel wires are separated by 0.25 m. Wire A carries 4.1 A and Wire B carries 10 A, both currents in the same direction. The magnetic permeability in empty space µ0 = 4p × 10^-7 T×m/A. The magnitude of the force on 1.4 m of Wire A is:
a. 2.6 × 10^–5 N.
c. less than 1.0 × 10^–5 N.
b. 4.6 × 10^–5 N.
d. 3.2 × 10^–5 N.
B
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