- Continuous Distribution of Charges
A hollow charged conductor has a tiny hole cut into its surface. Show that the electric field in the hole is`(sigma/(2in_0)) hatn`. where `hatn` is the unit vector in the outward normal direction, and `sigma` is the surface charge density near the hole.
Two large, thin metal plates are parallel and close to each other. On their inner faces, the plates have surface charge densities of opposite signs and of magnitude 17.0 × 10−22 C/m2. What is E: (a) in the outer region of the first plate, (b) in the outer region of the second plate, and (c) between the plates?