Course Information

Syllabus

 

Bibliography

Homework

 

Notes

 

Notes: Spring 2016

These notes will be updated regularly.

 

As a way to warm up, and to review elements of the last semester, work out these problems: Pretest

Treat this as a test.  Work independently. You may use any notes from this page, but no other resources.

 

 

Review of electrostatics and magnetostatics, and the general solution of the Poisson equation

 

Overview of electrostatics and magnetostatics

 

For more detail, see the archival notes for 3600.

 

Green functions: introduction

 

Green functions: formal developments

 

The Maxwell equations

 

Time dependent Green function for the Maxwell fields and potentials

 

Mathematical note: Complex analysis

 

Plane waves

 

Reflection and refraction of plane waves at an interface

 

Frequency dependence of the permittivity

 

Waves in plasma with a magnetic field

 

Superpositions of plane waves. Group velocity.

 

Time evolution of a Gaussian wave packet

 

Waveguides and cavities (updated, 2/26, 7:30 pm)

 

Multipole radiation

 

Midterm exam: Friday, March 4

 

Higher multipoles

 

Scattering

 

The Born approximation

 

Special relativity

 

Optional:  Formal development of Lorentz transformations

 

Relativistic unification of Newtonian mechanics and electrodynamics

 

Lorentz transformation of electromagnetic fields

 

Thomas precession and the BMT equation

 

Dynamics of charged particles

 

Motion of relativistic charged particles in constant fields

 

Invariants of the electromagnetic field

 

Motion of charges in non-uniform magnetic fields

 

Problems for chapter 12

 

 

 

 

 

 

 

 

Final exam: Monday, March 2, 2:00 PM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Course Information

Syllabus

 

Bibliography

Homework

 

Notes

 

 

Archival Notes

 

For your convenience, I include below my Notes from the most recent versions of E&M I have taught. These may be helpful for review or for a slightly different approach to some problems.

 

Electrodynamics I, Fall 2011 (level of Jackson, Physics 6110)

 

Electromagnetism I, Fall 2015 (level of Griffiths, Physics 3600)

 

 

Electrodynamics II, Fall 2011 (level of Jackson, Physics 6120)

 

 

Electrodynamics I, Physics 6110, Fall, 2011

 

Notes from the 2011 version of Electrodynamics I (incomplete, but see 3600 below for some comparable material).

 

Notes on Introduction and Chapter 1

 

Notes on Chapter 2

 

Notes Magnetic field of a current loop

 

Electromagnetism I, Physics 3600, Fall, 2015

 

Notes from the 2015 version of Electromagnetism I.

 

Mathematical background 

I. Vectors

A. Definition

B. Dot product

C. Cross product

D. Rotations

E. Exercises (required)

II. Derivatives of vectors and vector identities

A.   Curves

B.   Gradient

C.    Divergence

D.   Curl

E.    Combining derivatives

F.    The Levi-Civita tensor (optional)

G.   Exercises

III. Integral theorems

A.   Integral of the gradient

B.   The divergence theorem

C.    StokesÕ theorem

D.   Exercises

IV. Additional mathematical tools: Summary

A.   Cylindrical coordinates

B.   Spherical coordinates

C.    Rotations

D.   Dirac delta function

E.    Helmholz theorem

F.    Exercises

G.   Additional mathematical tools: Detail (optional)

 

Electrostatics

Techniques for computing time independent electric fields from a variety of sources.

 

I. The electric field

A. CoulombÕs law and the electric field

B. The continuum limit

C. Exercises

D. Math reminder: Taylor series

II. Gauss's law

A. The integral form of GaussÕs law

B. Examples using the integral form of Gauss's law

C. Exercises

III. MaxwellÕs equations for electrostatics

A. The differential form of GaussÕs law

B. The curl of the electric field

C. MaxwellÕs equations for electrostatics and the electric potential

D. Boundary conditions

E. Examples

F. Exercises

IV. Electric potential energy

A. Conservation of energy in the presence of electrostatic forces

B. The energy of a charge configuration

C. Force on a charged surface

D. Capacitance

E. Examples

F. Exercises

 

Solution techniques for electrostatics

 

I. The method of images

A. Planes

B. Spheres

C. Exercises

II. Separation of variables in Cartesian coordinates

A. Separation of variables

B. Satisfying the boundary conditions

C. Exercise

II. Separation of variables in spherical coordinates

A. Separation of variables

B. Satisfying the boundary conditions. These examples show some of the range of applications solvable using the spherical expansion. However, you will only be required to do problems similar to the exercises.

C. Exercises

III. Multipole expansion

A. The multipole expansion

B. Monopole

C. Dipole

D. Quadrupole (optional)

E. Exercises

 

Electric fields in matter

 

I. Electric fields in matter

A. Polarization of molecules

B. The potential produced by polarized materials

C. Electric displacement

D. Boundary conditions

E. The Laplace equation in cylindrical coordinates

F. Examples

 

Magnetism

 

I.   The Lorentz force law and the magnetic field

A. The Lorentz force law

B. Current density

C. The Biot-Savart law

II.  Amp¸re's law

A.   Amp¸reÕs law

B.   Examples

III. The vector potential and the laws of magnetostatics 

A.   Divergence of the magnetic field

B.   Magnetostatics and the vector potential

C.    Multipole expansion of the vector potential

D.   Summary of the equations of magnetostatics

IV. Problems in magnetostatics 

 

Electrodynamics II, Physics 6120, Spring, 2014

 

Notes from the 2014 version of Electrodynamics II, for your convenience.

 

Green functions

 

Magnetostatics

 

Time dependent Green function

 

Complex integration

 

Electromagnetic energy and momentum

 

Rotations, Parity and Time Reversal Symmetries

 

Magnetic Monopoles

 

Plane electromagnetic waves

 

Reflection and refraction of plane waves at an interface

 

Dispersion: frequency dependence of the dielectric constant

 

Propagation of waves in the ionosphere

 

A brief note on magnetohydrodynamics

 

Dispersion: Evolution of a Gaussian wave packet

 

Waveguides and resonant cavities

 

Midterm study guide

 

Multipole radiation

 

Scattering

 

Lorentz invariance

 

Tensors

 

Relativistic unification

 

Thomas precession

 

 

Course Information

Syllabus

 

Bibliography

Homework

 

Notes