27 EBWaves

# 27 EBWaves - Craig Ogilvie Craig Ogilvie 11 Summary Lecture...

This preview shows pages 1–6. Sign up to view the full content.

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

View Full Document

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

View Full Document

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.

Unformatted text preview: Craig Ogilvie Craig Ogilvie 11 Summary Lecture 26 q generates E-field q experiences force moving q generates B-field moving q experiences force changing B-field generates E-field changing E-field generates B-field Craig Ogilvie Goals for today Light as a traveling wave of changing, self-sustaining E and B-fields. Craig Ogilvie 22 Craig Ogilvie Craig Ogilvie 33 Maxwell Equations dt d l d E B - = Faradays law d intercepte E i dt d l d B + = Ampere-Maxwell law enclosed q A d E = Gausss law = A d B No magnetic monopoles How would these change if there were magnetic monopoles? Discuss with neighbors (two changes) Craig Ogilvie Craig Ogilvie 44 Maxwell Equations, In a region where there is no charge (q), current (i) dt d l d E B - = dt d l d B E = = A d E = A d B changing B-field induces E-field changing E-field induces B-field Craig Ogilvie Craig Ogilvie 55 Question: Changing field, one round 1 2 3 0% 0% 0% You are at some point in space measure the E-field to change with time graph,& E at the point changes magnitude and direction Can this field exist as shown ? Does it need something else?...
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 / 18

27 EBWaves - Craig Ogilvie Craig Ogilvie 11 Summary Lecture...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online