A rectangular coil of effective area 0.05 ~m ^2 is suspended freely in a radial magnetic field of 0.01 ~Wb / m ^2 . The torsional constant of the suspension fiber is 5 10⁻⁹ Nm / degree. If a current of 300 A is passed through it, then the a

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A rectangular coil of effective area 0.05 ~m ^2 is suspended freely in a radial magnetic field of 0.01 ~Wb / m ^2 . The torsional constant of the suspension fiber is 5 10⁻⁹ Nm / degree. If a current of 300 A is passed through it, then the angle through which the coil rotates is

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Correct answer: B. 30^

aligned & I= K n B A & = nIAB K = 1 300 10⁻⁶ 5 10⁻² 10⁻² 5 10⁻⁹ & =30^ aligned

A rectangular coil of effective area 0.05 ~m ^2 is suspended freely in a radial magnetic field of 0.01 ~Wb / m ^2 . The torsional constant of the suspension fiber is 5 10⁻⁹ Nm / degree. If a current of 300 A is passed through it, then the angle through which the coil rotates is

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