# L21_a - CONDUCTORS IN ELECTROSTATIC EQUILIBRIUM(19.11...

This preview shows pages 1–4. Sign up to view the full content.

CONDUCTORS IN ELECTROSTATIC EQUILIBRIUM (19.11) Properties are a result of the following: In a “good” conductor, electrons are free to move. At electrostatic equilibrium , charges MUST feel no force OR ELSE they will move until there is no force One result: charge distribution is generally NON-UNIFORM for: A charged conductor A conductor in an electric field

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
PROPERTIES: ISOLATED CONDUCTOR IN ELECTROSTATIC EQUILIBRIUM 1 st : 0 = E r everywhere inside a conductor Must be true or else charges would move until 0 = E r o for conductor in external electric field, charges locate so that superposition of external E r plus E r from charges gives 0 = E r inside
2 nd : Any NET CHARGE on conductor must be on surface can prove with Gauss’s Law o Choose Gaussian surface JUST INSIDE conductor surface because 0 = E r inside, normal component of field at Gaussian surface must be zero Because 0 n = E , must have = = Φ 0 n E dA E But Gauss’s law says 0 inside E ε q = Φ

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

## This note was uploaded on 03/08/2012 for the course PHYSICS 1051 taught by Professor Michaelmorrow during the Winter '12 term at Memorial University.

### Page1 / 6

L21_a - CONDUCTORS IN ELECTROSTATIC EQUILIBRIUM(19.11...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online