Chapter 1
The Electron . . . . . . . . . . . .9
Electricity—An Introduction
Classification of Elements
Ionization
Conductors and Insulators
Law of Charges
Wire Sizes
Chapter 2
Volts, Amperes, Ohms . . .15
The Basics of Any Electrical Circuit
Resistance and Conductor Size
Conductance
Stranded Conductors
Superconductors
Uses for Resistance
Resistor Color Code
Chapter 3
Meters, Reading a Meter . .23
Analog/Digital Meters
d’Arsonval Meter
Iron-Vane Meter
Ammeters and Meter Shunts
Voltmeters and Multipliers
Ohmmeters
Meter Connections
Learning to Read a Meter
Analog/Digital Meters—Which One
Is Best?
Meter Precautions
Chapter 4
Ohm’s Law . . . . . . . . . . . . .35
The Simple Circuit
Ohm’s Law
Overload Protection of Circuits
Circuits and Switches
Chapter 5
Power . . . . . . . . . . . . . . . . .43
Power
Horsepower
Earth and the Environment: How to
Conserve Electrical Power
Electric Motors
4
Table of
Contents