A square coil of sides $10 \;cm$ consists of 20 turns and carries a current of $12 A$ . The coil is suspended vertically and the normal to $30^{\circ}$ with the direction of a uniform horizontal magnetic field of magnitude $0.80\;T$ . What is the magnitude of torque experienced by the coil ?
$\begin{array}{1 1} 0.96\;Nm^{-1} \\ 0.96\;Nm^2 \\ 0.96\; N-m \\ 0.96\;Nm^{-2} \end{array}$