A current i flows in a circular coil of radius `r`. If the coil is placed in a uniform magnetic field `B` with its plane parallel to the field, magnitude of the torque that acts on the coil is

When a current carrying coil is placed in a uniform magnetic field with its magnetic moment anti-parallel to the field.

When a current carrying coil is placed in a uniform magnetic field with its magnetic moment anti-parallel to the field.

When a current carrying coil is placed in a uniform magnetic field with its magnetic moment anti-parallel to the field.

A rectangular coil of area vecA and number of turns n is placed in a uniform magnetic field vecB. If the coil carries a current I, then the torque acting on the coil is given by

Current I is flowing through a circular coil of radius r. It is placed in a magnetic field B in such a way that the plane of the circular coil is perpendicular to B. The force acting on it will be -

A constant current I is flowing through a circular coil placed in uniform magnetic field vecB as shown. Then:

A rectangular coil 20cmxx20cm has 100 turns and carries a current of 1 A . It is placed in a uniform magnetic field B=0.5 T with the direction of magnetic field parallel to the plane of the coil. The magnitude of the torque required to hold this coil in this position is