A cicular coil of 200 turns and radius `10cm` is placed in a uniform magnetic field of `0*5T`
Channel: Doubtnut
Date: 2020-08-02

A cicular coil of 200 turns and radius `10cm` is placed in a uniform magnetic field of `0*5T`, normal to the plane of the coil. If the current in the coil is `3*0A`, calculate 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. Assume that the area of cross-section of the wire to be `10^-5m^2` and the free electron density is `10^(29)m^-3`.