Maxwell's Equations
PHYS 301 · Module 6
This module unifies electricity, magnetism, induction, and electromagnetic waves. Students study Maxwell's four equations, wave propagation, the speed of light, and electromagnetic energy flow.
Lessons in this module
The four Maxwell equations unified
Maxwell's equations summarize classical electromagnetism. This lesson presents the four equations in integral form and explains their physical meanings.
Electromagnetic waves
Changing electric and magnetic fields can sustain one another and propagate through space. This lesson explains electromagnetic wave structure, polarization, and energy transport.
The speed of light from Maxwell
Maxwell's equations predict electromagnetic waves traveling at a speed determined by electric and magnetic constants. This lesson derives and interprets $c=1/\sqrt{\mu_0\epsilon_0}$.
Poynting vector and radiation
Electromagnetic fields carry energy and momentum. This lesson introduces field energy density, the Poynting vector, intensity, radiation pressure, and electromagnetic radiation.
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