Part 4

Electromagnetism

Electromagnetism covers electric and magnetic fields, circuits, and electromagnetic waves - the foundation of modern technology.

Topics Covered

Chapter 21

Electric Charge and Electric Field

Charge, Coulomb's law, and electric fields.
Chapter 22

Gauss's Law

Electric flux and symmetry-based field calculations.
Chapter 23

Electric Potential

Voltage, potential energy, and equipotential surfaces.
Chapter 24

Capacitance and Dielectrics

Capacitors, dielectrics, and energy storage.
Chapter 25

Current, Resistance, and Electromotive Force

Current, resistance, and sources of emf.
Chapter 26

Direct-Current Circuits

Kirchhoff's rules and circuit analysis.
Chapter 27

Magnetic Field and Magnetic Forces

Magnetic forces on charges and currents.
Chapter 28

Sources of Magnetic Field

Biot-Savart and Ampere's law for magnetic fields.
Chapter 29

Electromagnetic Induction

Faraday's law, Lenz's law, and induced emf.
Chapter 30

Inductance

Inductors, RL circuits, and energy in magnetic fields.
Chapter 31

Alternating Current

AC circuits, impedance, and resonance.
Chapter 32

Electromagnetic Waves

Maxwell's equations and electromagnetic wave propagation.