First page Back Continue Last page Overview Image
- PHY102 Physics II © Dr.Cem Özdoğan
- Just outside the surface of a conductor, the electric field is easy to determine using Gauss’s law.
- A tiny cylindrical Gaussian surface is embedded in the section as in Fig. 23-10.
- We assume that the cap area A is small enough that the field magnitude E is constant over the cap. Then, the flux through the cap is EA, and that is the net flux through the Gaussian surface.
- The charge qenc enclosed by the Gaussian surface lies on the conductor’s surface in an area A.
- If is the charge per unit area, then qenc is equal to A. Then, Gauss’s law becomes
- 23-6 A Charged Isolated Conductor