4 EFieldSuperposition

4 EFieldSuperposition - Craig Ogilvie Craig Ogilvie 11...

Info iconThis preview shows pages 1–4. 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: Craig Ogilvie Craig Ogilvie 11 Review Lecture 3 Electric field as a vector field each and every point in space, the field has a magnitude and a direction If a charged particle is placed in the field, it experiences a force Superposition principle for E-fields A charge creates an electric field at all points in space according to Coulombs law. This field is independent of the presence of other charges, and of the nature of the environment. ) , , ( or ) , , ( r E z y x E E q F = The electric field existing at a point is the vectorial sum of electric fields at this point created by all the existing charges. Craig Ogilvie Worked Problem: Line of charge What is E at P? Consider each small length dx as being a point charge Draw the E-field from that point charge Craig Ogilvie 22 P s L Q + + + + + + + + + + + + + + + + + dx dE =- = = = 2 / 2 / L x L x line E d E E d E x y Craig Ogilvie Plan: Line of charge Split field into two components Craig Ogilvie 33 P s L Q + + + + + + + + + + + + + + + + + dx dE y = E d E x y = = x x dE E = y y dE E dE x dE Craig Ogilvie...
View Full Document

This note was uploaded on 09/20/2011 for the course PHYS 222 taught by Professor Johnson during the Spring '07 term at Iowa State.

Page1 / 12

4 EFieldSuperposition - Craig Ogilvie Craig Ogilvie 11...

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

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