Study Materials on Classical Electrodynamics

Introduction:

Mechanics tells us how a system will behave when subjected to a given force. There are four forces in nature known (presently) to us. If we arrange them in order of decreasing strength, they would be:

1. Strong nuclear force
2. Electromagnetic force
3. Weak nuclear force, and
4. Gravitational force

We have often thought about questions, like: Where is friction? Where is the "normal" force that keeps us from falling through the floor? Where are the chemical forces that bind molecules together? Where is the force of impact between two billiard balls? The answer is that all these forces are electromagnetic.
It would hardly be an exaggeration if we say that we live in an electromagnetic world—for virtually every force we experience in everyday life, with the exception of gravity, is electromagnetic in origin. The electrical repulsion between two electrons is 10^{42} times as large as their gravitational attraction, and if atoms were held together by gravitational forces, a single hydrogen atom would be much larger than the known universe. 

Electrodynamics is a beautifully complete and successful theory. It has become a kind of paradigm for physicists: an ideal model that other theories strive to emulate. The laws of classical electrodynamics were discovered in bits and pieces by Franklin, Coulomb, Faraday, and others, but the person who completed the job, and packaged it all in the compact and consistent form it has today, was none other than James Clerk Maxwell. 

In the beginning, electricity and magnetism we entirely separate subjects, dealing with pith balls, batteries, currents, electrolysis, iron filings, compass needles, etc. But in 1820 Oersted noticed that an electric current could deflect a magnetic compass needle. Soon afterward, Ampère correctly postulated that all magnetic phenomena are due to electric charges in motion. Then, in 1831, Faraday discovered that a moving magnet generates an electric current. By the time Maxwell and Lorentz put the finishing touches on the theory, electricity and magnetism were inextricably intertwined. They could no longer be regarded as separate subjects, but rather as two aspects of a single subject: electromagnetism. By 1900, the three great branches of physics, electricity, magnetism, and optics, merged into a single unified theory. And it was soon apparent that visible light represents only a tiny "window" in the vast spectrum of electromagnetic radiation, from radio though microwaves, infrared and ultraviolet, to x-rays and gamma rays. With that being said, we present to all of you the necessary lecture notes, lecture videos, etc.,  found in the WWW domain to study/learn classical electrodynamics.

Lecture Videos:

• Prof. Walter Lewin's course on Electricity and Magnetism, from MIT OCW.
• Course in Electromagnetic theory by Prof. D. K. Ghosh, Department of Physics, IIT Bombay. 
• Landau & Jackson Level lecture videos on Classical Electrodynamics, along with Problem (homework) sheets. 

Lecture Notes:

• Lecture notes, assignments, and exam sheets based on Prof. Walter Lewin's course on classical electromagnetism.
• An introductory text on electromagnetism (and optics) by Prof. Richard Fitzpatrick. 
• Lecture notes on upper division undergraduate course on classical electromagnetism.
• A very brief course on classical electromagnetism by Prof. Alan Hood.
• Physics 122 lecture notes.
• A student's Guide to Maxwell's Equations, by Prof. Dan Fleisch (browse through the site "thoroughly" to see the problem sheets and to go through the pod-casts). 
• Free e-book on Electromagnetic Field theory by Prof. Bo Thidé. 
• Lots of free e-books on classical electromagnetism as found at E-Books Directory. 

References:

1. Introduction to Electrodynamics, David J. Griffiths, pp. xii-xiii

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