A long wire A carries a current of 10 amp. Another long wire B, which is parallel to A and separated by 0.1 m from A, carries a current of 5 amp. in the opposite direction to that in A. What is the magnitude and nature of the force experienced per unit length of B

Question:

A long wire A carries a current of 10 amp. Another long wire B, which is parallel to A and separated by 0.1 m from A, carries a current of 5 amp. in the opposite direction to that in A. What is the magnitude and nature of the force experienced per unit length of B(µ₀₌4π×10^-7 weber/amp-m)

Options :

(a) Repulsive force of 10^-4 N/m
(b)Attractive force of 10^-4 N/m
(c) Repulsive force of 2π×10-^5 N/m
(d)Attractive force of 2π×10-^5 N/m

Answer :

(a) Repulsive force of 10^-4 N/m

Answer Steps :

step 1:

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