This class builds
on the foundation established in PHYS 405 to develop
the complete theory of electrodynamics. Starting from
Maxwell's equations for electrostatics and
magnetostatics, we will see how these have to be
modified to account for time-varying fields. Equipped
with the time-dependent Maxwell's equations, we will
be able to discuss the energy, momentum, and angular
momentum contained within the electromagnetic field.
We will then discuss the very important topic of
electromagnetic waves and their propagation both in
vacuum and within linear media. We will then argue
that scalar and vector potentials are generally easier
to handle than fields in electrodynamics, and will use
this fact to compute the E&M signatures of moving
point charges, including how they radiate energy in
the form of electromagnetic waves. We will finally
turn our attention to more fundamental aspects of
electrodynamics, discussing its relativistic nature
and its modern Lagrangian formulation, which reveals
the fundamental symmetries underpinning the theory.

The Take-home Final Exam
will take place on December 16-17.

Instructor
Tuesdays and Thursdays 3:00-4:00pm
at my office or on Zoom. These are my preferred
"office" hours. If you can't make my regular office
hours, or if your questions cannot wait, please send
me an email to set up an appointment.

Teaching assistant
The teaching assistant is Loc Ngo (ngophucducloc1995@unm.edu).
He will be available on Monday 1-2pm at his office
in PAIS 3414 for you to meet
and discuss any homework grading issues you may
have. If you need to schedule an appointment outside
of the TA's office hours please send him an email.

Grading

The grading in the course will be based on your
performance in homework assignments, two midterm
exams, and a final exam. The contribution to the final
grade is as follows:

Class participation will be 10% of the final
grade.

Homework: 9 assignments will represent 20% of the
final grade.

Two midterm exams: each of them will represent 20%
of the final grade.

Final exam: will represent the remaining 30% of
the final grade.

The midterm exams are tentatively scheduled for
September 23rd and October 28th
during (extended) class time, and the final exam will
be held during exam week.

Homework assignments

There will be
9 assignments during the semester. The
assignments will be posted in thetentative scheduleabout
7-10 days before they are due. The login
information necessary to access the homework
PDFs will be provided in the first class.The homework must be submitted
to me in class the day they are due.Late
homework policy: homework returned in the next
24 hours after the due date will be accepted
but with 25% penalization (i.e. the maximum
grade you can get in this case is 75% of the
total points for that homework). After these
24 hoursthe corresponding
solutions will be postedhere, and homework
assignments submitted after solutions post
will not be graded.

While I strongly
encourage you to discuss the homework
assignments with your classmates, the work you
hand in must be entirely yours.

Problems class

Listed officially as
PHYS 416, this is a very
important adjunct to the main lecture class, taking
place every Thursday from 1 to 1:50pm in PAIS 1140.
It will provide you additional practice with solving
problems beyond the homework assignments and self
study. Furthermore, the class will also give you a
valuable opportunity to bring to my attention your
difficulties with any concepts covered in the
lecture class so I can address them in a group
setting. The problem sheets would be posted here
on the Wednesday before the problem class. The
corresponding solutions will be posted after the
class. You will receive credit for the problems
class as long as you register and show up for more
than 10 sessions. Even if you don't register for the
class, I encourage you to attend anyway, just to get
the extra practice.