Physics - Magnetism Question with Solution | TestHub

A closely wound solenoid of 2000 turns and area of cross-section $1.5\times 10^{-4}{\mathrm{m}}^2$ carries a current of $2.0\mathrm{A}$. It is suspended through its centre and perpendicular to its length, allowing it to turn in a horizontal plane in a uniform magnetic field $5\times 10^{-2}\mathrm{T}$ making an angle of $30^{\circ }$ with the axis of the solenoid. The torque on the solenoid will beNEET 2010 (Mains)