alleryThe magnetic force per unit length between two parallel wires carrying currents I₁ and I₂ separated by distance d is:
Aμ0 I₁ I₂/(2πd)
Bμ0 (I₁+I₂)/d
Cμ0 I₁/I₂
Dμ0 I₁²/(2πd)
Answer & Solution
Correct answer: A. μ0 I₁ I₂/(2πd)
F/L = μ0 I₁ I₂/(2πd).
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