Question

If the rectangular coil is set with plane of symmetry along z axis in a parallel magnetic field, then the torque experienced by coil is​

Answer 1

When current carrying coil is placed in the magnetic field torque acts on the coil. The torque acting on the coil will be zero if the coil and the magnetic field are perpendicular. Thus it orients such that the plane of coil is perpendicular to the field direction.