One can conceive an atomic nucleus, as a sphere charged uniformly, and positively. Let the proton number be Z; the charge intensity of either electron or proton is e =1.6x10-19 Coulomb. Thereby the charge intensity of the nucleus at hand becomes Ze. Let its radius be R a) Consider a location denoted by the distance r to the center of the nucleus, such that r>R, and write at r (in MKS unit system), the electric field intensity E(r) and the electric potential V(r) created by the nucleus. b) Write the relationship between these two quantitites, and the reason for it