Write an expression for the torque acting on a current-carrying loop suspended in a uniform magnetic field.

(N/A) When a current-carrying loop of area $A$ and current $I$ is placed in a uniform magnetic field $B$,it experiences a torque $\tau$. The expression for the torque is given by:
$\tau = \vec{m} \times \vec{B}$
Where:
- $\vec{m}$ is the magnetic dipole moment of the loop,defined as $\vec{m} = I\vec{A}$.
- $\vec{B}$ is the external uniform magnetic field.
- The magnitude of the torque is $\tau = mB \sin \theta$,where $\theta$ is the angle between the area vector $\vec{A}$ (normal to the loop) and the magnetic field vector $\vec{B}$.