Physics - Rotation Question with Solution | TestHub

A solid sphere of mass $\mathrm{m}=1\mathrm{kg}$ and radius $\mathrm{R}=10\mathrm{cm}$ is being wrapped by N turns of a massless wire, is kept on a rough inclined plane. If the wire carries a current i , the sphere remains in equilibrium in a horizontal magnetic field $\overrightarrow{\mathrm{B}}$. If $\overrightarrow{\mathrm{B}}$ is suddenly reversed, find the angular acceleration of the sphere. If answer is $\mathrm{n}\times 100\mathrm{rad}/{\mathrm{s}}^2$. Write the value of n. (Given $\theta =37^{\circ }$ )