Question

electrodynamics

Consider a rectangular Soop of size aa by ab caying a curent uhich is free to rotate about 때 axis that bisects the sides leh 2b. The axis is parallel to and distode .T from a sthaight uire carrying cuftent I. (See the feure on the right)fhe plane ofthe icopmakesar the plame containing the straight wire end the axis, ond the currents in the uire ond im the side (f Sengeh 2) of the Soop closest to the wire flow im the some direction, show that mitude of the torque on the axis 20 sabdIsin What is its direction?

Answer 1

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