A circular coil of 20 turns and radius 10 cm is placed in a uniform magnetic field of 0.1 T normal to the plane of the coil if the current in the coil is 5.0A what is the
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 copperb is given to be about `10^29m^(-3)`?