A long wire A carries a current of 10 amp. Another long wire B, Which is parallel to A and separated by 0.1m 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$({\mu _0} = 4\pi imes {10^{ - 7}}\,weber/amp{ m{ - }}m)$

Question

A long wire A carries a current of 10 amp. Another long wire B, Which is parallel to A and separated by 0.1m 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$({\mu _0} = 4\pi 	imes {10^{ - 7}}\,weber/amp{m{ - }}m)$

Accepted Answer

Repulsive force of ${10^{ - 4}}N/m$

Answer

Attractive force of ${10^{ - 4}}N/m$

Answer

Repulsive force of $2\pi 	imes {10^{ - 5}}N/m$

Answer

Attractive force of $2\pi 	imes {10^{ - 5}}N/m$

Moving Charges and Magnetism

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