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A circular coil having 25 turns and a radius of R = 17.6 cm carries a...

A circular coil having 25 turns and a radius of R = 17.6 cm carries a current of 2.00 A. It is placed in a uniform magnetic field of 78.0 mT. The initial angle between the magnetic moment of the coil μ and the magnetic field B is 35.0o.How much work is required to rotate the coil so that the B-field lies in the plane of the coil?

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