Chapter 22:

Chapter 23:

Chapter 24:

Chapter 25:

Chapter 26:

Chapter 27:
magnets, magnetic fields, Lorentz force, and current 
Chapter 28:
magnetic fields, currents, Lorentz force,
symmetry, Ampere's law, and the BiotSavart law 
Chapter 29: Faraday's law, Lenz's law, emf, flux,
inductance, and the Lorentz force 
Wolfgang Christian and his students developed Physlets at Davidson College and converted Physlets from Java to JavaScript using the SwingJS system developed by Robert Hanson at St. Olaf College using the java2script transpiler.
All Electromagnetism Chapters have been converted to JavaScript.