# If a current carrying coil having a magnetic moment $\overrightarrow M$ is placed in a magnetic field $\overrightarrow B$ , then the torque acting on it will be

$\begin {array} {1 1} (a)\;\overrightarrow M \times \overrightarrow B & \quad (b)\;\overrightarrow M ^. \overrightarrow B \\ (c)\;\overrightarrow M / \overrightarrow B & \quad (d)\;\overrightarrow B / \overrightarrow M \end {array}$

In a current carrying coil of magnetic moment $\overrightarrow{M}$ in a magnetic field $\overrightarrow{B}$ torque $\tau = \overrightarrow{M} \times \overrightarrow{B}$
Ans : (a)
edited Feb 22