A. Electrostatic field is zero inside a conductor. B. Electric field at the surface of a charged conductor =‌
σ
ε0
∧
n
, depends on surface charge density ( σ ). C. The interior of a charged conductor cannot have any excess charge in the static situation. D. At the surface of a charged conductor, the electrostatic field ⟂ surface. E. The electrostatic potential is constant and can be non-zero everywhere inside a charged conductor.
