UCT Physics PHY321F
Electromagnetism (dynamics)

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21 April 2005 (2300) /dga Extension of problem set EM08 granted till Tuesday 26 April. Minor typo in problem set EM07 Q3) have been corrected in the version on this website. I do not know if these animations are correctly described, but they look good: See the TE11 mode animation at right, and animation of other transverse electric and tranverse magnetic modes in a rectangular waveguide

A 20 lecture module on classical electrodynamics (special relativity, electromagnetic waves, radiation, etc), lectured by Professor David Aschman in the first semester.

• Course syllabus and reading 2005
• Textbooks
• Electromagnetism lecture slides (lecture notes)
  • Special Relativity
  • Electromagnetism and optics
  • Wave guides
    • animations
      • www.falstad.com Mathphysics applet site
    • animated pages
      • transverse electric modes in rectangular waveguide
      • transverse magnetic modes in rectangular waveguide
  • Electromagnetic radiation
    • animations
      • Magnetic dipole oscillates in magnetic field
      • Magnetic dipole radiation: near field
      • Magnetic dipole radiation: far field
      • magnetic dipole turns on
      • magnetic dipole turns off
    • ..
• Physics terms for you to explain and Revision self-test seminars
• 2005 Problem sets & Hints & Solutions (partial)
• Class tutor | Honesty declaration | Lecturer office hours
• Classlist .
• Revision self-test seminars
• Past class tests and examinations & Glossary of examination terms
• ..
• Lecture notes on special relativity:
  • Electromagnetism and relativity: Feynman Lectures Vol2 Ch 25, 26, 27 c: and g: .. 25c g .. 26c g .. 27c g ..
  • Harvard PHYS151 mechanics lectures (Prof Morii). See lectures 14,15,16
  • PHY215 relativity at Michigan State University
  • PHY841 Michigan state University notes on relativity: Ch 02a and Ch 02b.
  • Cornell PHY209 by David Mermin
  • Special Relativity notes by Peter Dunsby, UCT
  • Physics 252 U Virginia
  • Anne Green PHYS3003 University of Sydney
  • Special Relativity - notes by D. Hogg (Caltech, Princeton IAS)
  • Special relativity pages and animation (Andrew Hamilton)Colorado U
  • Advanced Relativity - PHYS331 Dr Wang, University of Lancaster
  • Files (mainly (*.pdf) viewable from UCT Physics network only. | (g:) | .
• ..
• Electromagnetism (electrodynamics) lecture notes and web pages from other courses:
  • PHYS15C Harvard lectures on waves by Prof M Morii (2002).
  • MIT Physics 8.02T
  • PHY217 Rochester
  • PHY218 Rochester (EM waves)
  • Physics 112 at Swarthmore
  • Cambridge Part 1 A Notes on Electrostatics by C Ford ..[g:] ..[c:]
  • Electromagnetism (resonant cavities and waveguides): Feynman Lectures Vol2 Ch 23, 24 on c: and g: .. 23c g .. 24c g ..
• ..
• Some AC theory web courses:
  • AC circuit theory notes from University of New South Wales - good animations
  • Resonant AC Circuits Physics217 Rochester ..[g:] ..[c:]
• ..
• Some good animations/applets/...
  • Mathphysics applets from falstad.com
  • LRC circuit at Cal Poly Pomona
  • Electromagnetic fields animation (Prof Belcher at MIT Physics) ..[g:] ..[c:]
  • Vector calculus applets in UCT PHY209S
  • Curl applet from Davidson.edu The applet plots magnetic fields in two dimensions. You can imagine that these are velocity vector fields. You can enter your own field components Bx and By. The "Create Cursor" button (bottom left hand corner) gives you a curser to drag around which displays the curl of your field. (You need to use "spreadsheet" notation to enter the field components:    + , - , *,  /    and  ^ for "exponential")

  • Vector field analyzer. A very nice applet.
  • 3-d Vector field animation applet (falstad)
  • Group and phase velocity applet (Summerfield)
  • E and B field of moving charge
  • E and B field of accelerated charge
  • E field of a moving charge applet
• ..
• Some more advanced material, or stuff less directly relevant to this course:
  • Electromagnetism and Energy MIT 6.013 by Haus and Melcher
• ...
• Useful websites
  • Physics 2000 book Chapter 1
  • Time dilation: a worked example by M Fowler, University of Virginia
  • Twin paradox
  • Fresnel relations
• Some computer programs (dga, hstd, .../uct)
  • trubasic program for 2005 Problem set 03 Q2)
  • dem500.tru add two waves
  • dem501.tru add several waves - group and phase velocity
  • wave0001.py add two waves - group and phase velocity
  • wave0002.py add five waves - group and phase velocity
  • groupv3.py 2004 problem set 5 Q1) - dispersive wave
  • To run Quickbasic, you need the following files
    • quickbasic
    • qb.bi
    • qb.qlb
  • Group velocity (Quickbasic) (hstd) and Group velocity2 (Quickbasic_

050000/dga