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Electromagnetism

Electromagnetism or “E and M”

Electromagnetism is a set of topics in physics that investigates electricity, magnetism, and the way they interact with each other.  There are a lot of things going on in electricity and magnetism.  As you work your way up through the topics, you eventually learn Maxwell’s Equations.  These include Gauss’s Laws for Electricity and Magnetism, Faraday’s Law, and Ampere’s Law with Maxwell’s addition.  Together, these key equations predict the existence of electromagnetic waves, like radio waves, microwaves, light, and gamma rays.

Electromagnetism sticker.  Electric field of a positive charge with red field lines pointing outward and potential lines shown by green dashes.

Check out the products below and pick out your favorite E&M equations.

If you like electromagnetism, you’re sure to like optics too.