Macquarie University

Classical Electrodynamics - PHYS301

This course extends our development of the classical theory of electromagnetism, the first example of a unified theory in physics and the origin of the concept of fields. We build on the differential Maxwell equations introduced in PHYS202 and its focus on statics to formulate the full dynamical description of electromagnetism in free space and in materials. The techniques developed in this unit provide tools for solving practical problems in power generation and transmission, circuits, radiation and optics, and is essential training for more advanced courses in physics. Topics include electromagnetic waves in vacuum and lossy dielectrics; energy and momentum in electromagnetism; the potential formulation of Maxwell’s equations and gauge transformations; phase and group velocities and dispersion; complex field representations and Fourier transforms; causality and Kramers-Krönig relations; special relativity, Lorentz transformations, and the Lorentz invariance of the Maxwell equations. An advanced laboratory program provides the opportunity for students to develop skills in self-directed experimental physics using a wide variety of measurement techniques and equipment.