Find the number of oscillations performed per minute by a magnet is vibrating in the plane of a uniform field of 1.6 × 10 Wb/m

Question

Find the number of oscillations performed per minute by a magnet is vibrating in the plane of a uniform field of 1.6 × 10^-5 Wb/m² . The magnet has moment of inertia 3 × 10^-6 kgm² and magnetic moment 3 A m².

Answer 1

Data : B = 1.6 × 10^-5 T, I = 3 × 10^-6 kg/m² , µ = 3 A.m²

The period of oscillation, T = 2π \(\sqrt{\cfrac{I}{\mu B_h}}\)

\(\therefore\) The frequency of oscillation is

\(\therefore \) The number of oscillations per minute