A circular current loop of radius 2.0 cm carries a current of 2.0 mA. (a) What is the magnitude of its magnetic dipole moment? (b) If the dipole is oriented at 30 degrees to a uniform magnetic field of magnitude 0.50 T, what is the magnitude of the torque it experiences and what is its potential energy?
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A] The magnitude of the magnetic dipole moment of Earth is 8.0×1022JT−1.
B] The current through a circular wire loop of radius 10 is 5.0 A
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