Question

A circular loop of wire of radius R carries a current I in a region where a uniform magnetic field of magnitude B0 is present. (a) If the magnetic dipole moment of the loop makes an angle θ < π/2 with the magnetic field, do a drawing that includes the loop of current, its magnetic dipole moment, the magnetic field, and the direction of the torque experienced by the loop. Make sure to indicate the current i and the angle θ in your drawing. (b) For a loop of rotational inertia I, find an expression for ω, the angular frequency of small oscillations of the loop, in terms of the given quantities.

Answer 1