A circular coil of 20 turns and 10 cm radius is placed in a uniform magnetic field of 0.10 T normal to the plane of the coil. If the current in the coil is 5 A, cross-sectional area is 10⁻⁵m² and coil is made up of copper wire having free electron density about 10²⁹m⁻³, then the average force on each electron in the coil due to magnetic field is.
a. 3×10²⁵N
b. 5×10²⁵N
c. 2.5×10²⁵N
d. 4×10²⁵N