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A rectangular coil of length 0.12 m and width 0.1 m having 50 turns of wire

A rectangular coil of length 0.12 m and width 0.1 m having 50 turns of wire is suspended vertically in a uniform magnetic field of strength 0.2 Weber/m². The coil carries a current of 2A. If the plane of the coil is inclined at an angle of 30⁰ with the direction of field, the torque required to keep the coil in stable equilibrium will be

Options

(a) 0.24 Nm
(b) 0.12 Nm
(c) 0.15 Nm
(d) 0.20 Nm

Correct Answer:

0.20 Nm

Explanation:

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