Lec03 - Lecture 3-1 Electric Field Lines •A visualization...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon

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

View Full DocumentRight Arrow Icon

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

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Lecture 3-1 Electric Field Lines •A visualization tool to illustrate the geometry of an electric field. •Electric field lines originate from positive charges and terminates at negative charges . •The direction of the electric field at any location is tangential to the field line there. •The magnitude of the electric field at any location is proportional to the density of the lines there. # lines/area ~ 1/r 2 ~ |E| (or at infinity) Lecture 3-2 Electric field lines of two charges of equal magnitude dipole Far from the charges, electric field lines resemble those of a point charge. h Field lines do NOT cross h They do NOT come out of nowhere or vanish into a point. Lecture 3-3 Electric field lines of two charges # lines proportional to the magnitude of charge Far from charges, the field lines are as if they are due to a point charge of +2q-q=+q Lecture 3-4 Electric Field due to an Electric Dipole () () 2 2 2 2 2 2 2 2 3 ( /2) ( /2) (1 ) (1 ) 2 2 (1 ...)(1 ...) 2 2 [1 ( )] ... E E E q q k k zd zd q d d k z z z q d d k z z z kqd d k O z z p z z +--- =- =-- + =-- + = + +-- +...
View Full Document

This note was uploaded on 04/27/2008 for the course PHYS 241 taught by Professor Wei during the Spring '08 term at Purdue.

Page1 / 14

Lec03 - Lecture 3-1 Electric Field Lines •A visualization...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online