Based on its definition as electric flux per unit volume, what are the units of the divergence of the electric field? A lead nucleus is spherical with a radius of about 7 × 10−15 m. The nucleus...

Based on its definition as electric flux per unit volume, what are the units of the divergence of the electric field?

A lead nucleus is spherical with a radius of about 7 × 10−15 m. The nucleus contains 82 protons (and typically 126

neutrons). Because of their motions the protons can be considered on average to be uniformly distributed throughout the

nucleus. Based on the net flux at the surface of the nucleus, calculate the divergence of the electric field as electric flux per

unit volume.