# Chapter 28: Introduction to Electric and Magnetic Fields

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## Introduction

We briefly outline the history and basic facts about electric and magnetic fields, describe the notions of density, local conservation, delta functions and electrostatic potentials.

## Topics

28.1 Electricity and Magnetism: Historical Survey and Basic Facts

28.2 Densities and Conservation Laws

28.3 Point Particles and Delta Functions

28.4 Electrostatics and Potentials