A circular coil of 0.1 square meter and 100 turns is placed in a magnetic field of 0.5 Weber/m^2.

A circular coil of 20 turns and radius 10 cm is placed in a uniform magnetic field of 0.10 T normal to the coil. If the current in the coil is 5.0 A, what is the (a) total torque on the coil, (b) total force on the coil, (c) average force on each electron in the coil due to the magnetic field? (The coil is made of copper wire of cross sectional area 10^(-5) m^(2) and the free electron density in copper is given to be about 10^(29) m^(-3) )

A circular coil of 25 turns and radius 12 cm is placed in a uniform magnetic field of 0.5 T normal to the plane of the coil. If the current in the coil is 6 A then total torque acting on the coil is

A circular coil of 20 turns and radius 10cm is placed in uniform magnetic field of 0.10T normal to the plane of the coil.If the current coil is 5A ,then the torque acting on the coil will be: ?

A circular coil of 25 turns and radius of 12 cm is placed in a uniform magnetic field of 0.5 T normal to the plane of coil. If the current in the coil is 5 A, then total torque experienced by the coil is

A circular coil of 100 turns and radius 2 cm is placed in a uniform magnetic field of strength 0.1 T. Current flowing through the coil is 10 A. Coil is held in an orientation that it experiences maximum possible torque. By what angle should the plane of the coil be rotated that torque acting on it becomes half of this maximum value ?