Question

Two long parallel wires 2 cm apart carry 5 A and 3 A currents in the same direction. What is the force per unit length on one wire?

A 1.5 × 10⁻⁴ N/m
B 2.25 × 10⁻⁴ N/m
C 3 × 10⁻⁴ N/m
D 4.5 × 10⁻⁴ N/m
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