A capacitor is a device that stores electric energy Lecture 10
Feb 22, 2016
A capacitor is a device that stores electric energyLecture 10
Point Charge Q, E-lines, E-flux, Gauss Law
Simple Example of Gauss Law:
Electric flux through surface
Charge enclosed by surface
Gauss Law:
Porcupine-Needle Analogy
Given: A Sphere conductivity shell with Q on the surface
Spherical Cavity: Ein = 0,
Gauss Law: Long Rod
(agrees with near field expression)
Infinite SheetGiven:
Find: near the surface
(cylindrical Gaussian surface)
Charge Enclosed by Gaussian Surface:
Clicker Question: Clicker 10.1
Recap:
Gauss Law:
Porcupine-Needle Analogy