A square coil of side 10 cm consists of 20 turns and carries 12 A. The coil is suspended vertically and the normal to the plane makes an angle of `30^@` with the direction of uniform magnetic field of 0.8T. The torque acting on the coil is

A square coil of side 10 cm consists of 20 turns and carries a current of 12A. The coil is suspended vertically and the normal to the plane makes an angle of 30^(@) with the direction of uniform magnetic field of 0.8 T. The torque acting on the coil is

A square coil of side 10 cm consists of 20 turns and carries a current of 12A. The coil is suspended vertically and the normal to the plane of the coil makes an angle of 30^@ with the direction of a uniform horizontal magnetic field 0.8 T. What is the magnitude of torque experienced by the coil?

A rectangular coil of 500 turns with an average area per turn 4.00 cm^(2) carries a current of 0.2 A. The coil is placed at an angle of 60^(@) with the direction of magnetic induction of 10^(-3) Wb//m^(2) . The torque acting on the coil is

What is the magnitude of magnetic force per unit length on a wire carrying a current of 8 A and making an angle of 30^@ with the direction of a uniform magnetic field of 0.15 T ?

A 100 turns coil shown in figure carries a current of 2 amp in a magnetic field B=0.2 Wb//m^(2) . The torque acting on the coil is

A circular coil of radius 40 mm consists of 250 turns of wire in which the current is 20 mA. The magnetic field at the centre of the coil is

A closely wound solenoid of 1000 turns and area of cross-section 2 xx 10^-4 m^2 carries a current of 1 A. It is placed in horizontal axis at 30^@ with the direction of uniform magnetic field of 0.16 T. Calculate magnetic moment of solenoid and torque experienced by the solenoid due to the field.

A circular coil of 30 turns and radius 8.0 cm carrying a current of 6.0 A is suspended vertically in a uniform horizontal magnetic field of magnitude 1.0 T. The field lines make an angle of 60^@ with the normal of the coil. Calculate the magnitude of the counter torque that must be applied to prevent the coil from turning.

(a) A circular coil of 30 turns and radius 8.0 cm carrying a current of 6.0 A is suspended vertically in a uniform horizontal magnetic field of magnitude 1.0 T. The field lines make an angle of 60 ^@ with the normal of the coil. Calculate the magnitude of the counter torque that must be applied to prevent the coil from turning. (b) Would your answer change, if the circular coil in were replaced by a planar coil of some irregular shape that encloses the same area? (All other particulars are also unaltered.)

When a current carrying coil is suspended in. uniform magnetic induction B, the magnitude of torque acting on it is given by