A small circular turn of wire of radius a that carries a steady current 1 (A) is placed at the center of a much larger turn of wire of radius b (b >> a) that carries a steady current 2(A) in the same direction. The angle between the normal of the two circuits is e (larger circu ar wire lies on xy-plane) and small circular wire is free to turn about its diameter. Determine the magnitude of the torque on the small circular wire.

A small circular turn of wire of radius a that carries a steady current 1 (A) is placed at the center of a much larger turn of wire of radius b (b >> a) that carries a steady current 2(A) in the same direction. The angle between the normal of the two circuits is e (larger circu ar wire lies on xy-plane) and small circular wire is free to turn about its diameter. Determine the magnitude of the torque on the small circular wire.