A current carrying loop in a uniform magnetic field experiences

Given Data:

A current carrying loop in a uniform magnetic field.

Detailed Solution:

A current carrying loop in a uniform magnetic field will experience torque only given by
$\overrightarrow{\tau }=\overrightarrow{M}\times \overrightarrow{B}$
Where $M$ is magnetic moment of loop $B$ is magnetic field.
Force is zero on a current carrying loop in a uniform magnetic field.
Note : Magnetic field must be uniform for net force to be zero.
For a non uniform field, net force may not be zero

Hence, the correct option is B.