PHY 6347 -- Spring 2013

PHY 6347 — Electromagnetic Theory 2 — Spring 2014

Course: PHY 6347, Electromagnetic Theory 2, Meeting times: MWF, Period 3 (9:35–10:25am), room 1101
Instructor: J. N. Fry, Office: 2172, Phone: 392-6692, e-mail: fry # phys.ufl.edu, Office Hours: MWF, 10:30–12:00 [schedule]
Grader: LiLi Deng, Office: 2111, Phone: 392-8755, Office Hours: M 2:00–4:00, e-mail: denglili # phys.ul.edu

Course Description: PHY 6347 is the second semester of the graduate core sequence in Electromagnetism, the second half of PHY 6346, studying Maxwell's equations in general and in specific situations. The objectives of the course are (i) to study electrodynamics at a theoretically sophisticated level; (ii) to develop mathematical techniques useful for solving problems in E&M as well as other areas of physics; (iii) to develop problem solving skills; (iv) to prepare the student (if necessary) for the preliminary exam. In this semester we will develop applications of general principles introduced in the fall. Topics to be covered include

Grading: Grading will be based 50% on periodic homework sets, and 25% each on a midterm and final exam. The midterm exam will be in room 1216 the the evening of Wednesday, March 13, 7:00–9:00pm. [solution] [distribution] The final exam is scheduled for Friday, May 3, 7:30–9:30am (Exam Group 3A). [solution] [distribution] Exams this semester will be open textbook, but not open notes. Students are expected to complete work at the time due, or as soon as possible in case of illness or other accepted, documented circumstance. There will be no last-minute makeups accepted.

The following paragraphs of advice on how to do well in Physics are lifted from one of my colleagues. (He also was once known to have his posted office hours during class time.) This is a graduate course, and you are free to make your own choices, but you should listen to what they say:
  I do not plan to take daily attendance, but it is to your advantage to attend class. You may spend most of your time sleeping, but in between you will have the opportunity to learn what subjects I think are important, and you can then concentrate on these subjects during your reading. If by some unfortunate set of circumstances you do miss class, do not ask me if I said anything important — everything that I say is important. Instead, ask a classmate; she or he is likely to give an honest answer, and you won't offend me. There will be a substantial number of examples discussed in class that are not in the textbook, and examples in class often appear on tests. If you miss class you will not do well in this course.
  Do the assigned homework. This is the drudge part of physics, but it is absolutely necessary. We will learn grand ideas and see their wondrous applications in class. But, your understanding is only superficial unless you can apply these same grand ideas to completely new circumstances. In course work, this is usually done with homework problems. Do not be surprised if the homework is frustrating at times; solving one challenging problem makes the next much easier. And homework problems often appear on tests. Doing all of the homework is the easiest way to improve your grade. Not doing homework is the easiest way to lower your grade.

Required text:

Other useful books:

[1] Gaussian units; [2] Lorentz units

Kevin Schmidt's Possibly Useful Books for Classical Electromagnetism with comments

The following quote (attributed to Sidney Coleman) captures a common reaction to Jackson: Scientists tend to overcompress, to make their arguments difficult to follow by leaving out too many steps. They do this because they have a hard time writing and they would like to get it over with as soon as possible.... Six weeks of work are subsumed into the word "obviously."

This and that:
Physical Constants from the Particle Data Group
Math trivia, Akira Hirose Math Notes
Frequency allocations
Model ε(ω), osa fig
Wave Packet Animations (from A. John Mallinckrodt)
George Gabriel Stokes Lucasian Chair , Sir George Gabriel Stokes
Elliptical polarizations: various α, various β
Polarization of the Cosmic Microwave Background, WMAP Polarization, WMAP TE Spectrum
Pulsar Dispersion Measure in Cosmos. The advanced extraterrestrial civilizations in PSR J0437-4715 pulsar.
Hannes Alfvén
Dipole, half-wave, full-wave antenna patterns, P(kd).
Rotating systems
GR Quadrupole Formula
Spherical Bessel functions
Vector spherical harmonic angular distributions
Linear Antenna: Multipole Expansion
Conducting sphere. long wavelength / for ka = 1/8, 1/4, 1/2, 1; short wavelength dσ/dΩ for ka = 1/2, 1, 4, 16, 64; short wavelength scaled; log dσ/dΩ vs. θ; amplitudes |αl|², |βl|² for ka=1, ka=64; integrated scattering cross section σ(ka). Short wavelength ka=128
Circular Aperture Diffraction, Poisson's bright spot, square diffraction
Pinhole Camera another pinhole camera
Tübingen at nearly the speed of light, home, Color and brightness
Relativistic constant acceleration
Lorentz transformed electic field γ = 1, 1.020, 1.091, 5/4, 5/3, 10
Field of displaced charge
Kevin Schmidt's derivation of the relativistic Larmor formula
Lorentz transformed angular distributions
Synchrotron intensity d² I /dΩ dω

Comet PanSTARRS
asteriod path Asteroid Impact Effects, JPL NEO Program, Earth Sky, Bad Astronomy 2012 Bad Astronomy 2013
Cosmic Variance, sean carroll, @seanmcarroll, Leaves on the Line, @defjaf, In the Dark, @telescoper, Starts With a Bang!
Planck Chromascope,
Skeetobite Weather, computer tracks

Class Diary

Homework: Problem solving is a skill learned only through practice. Take advantage of the homework as an opportunity to learn how to recognize the right approach to a problem before it becomes exam time. While I encourage you to discuss the assignments with each other, what you turn in must represent your own work. As we also do when publishing research articles: if you obtain significant information from a published or human source, cite that source. This will often be as little as "Jackson, eq. (9.98)". If you work together, please identify other members of your working group.
This edition of the textbook uses SI (mks) units, at least until the relativity chapters. Correct solutions to the assigned problems will be in proper units. Please, be sure that in the end your elegant solution in fact answers the question asked!

  1. Homework 1. Coming soon.

University Policies: Students are expected to know and comply with the University's policies regarding academic honesty and use of copyrighted materials. Cheating, plagiarism, or other violations of the Academic Honesty Guidelines will not be tolerated and will be pursued through the University's adjudication procedures.
  “Students requesting classroom accommodations must first register with the Disabilities Resources Program, located in the Dean of Students Office, P202 Peabody Hall. The Disabilities Resources Program will provide documentation to the student, who must then deliver this documentation to the instructor when requesting accommodations.”