average force on each electron in the coil due to the magnetic field. (The coil is made of copper…

average force on each electron in the coil due to the magnetic field. (The coil is made of copper wire of a cross-sectional area of $10^{-5}\text{ m}^2$, and the free electron density in copper is given to be about $10^{29}\text{ m}^{-3}$).