Chapter 1
Learning and Applying the
Fundamentals 11
Use of Electricity 12
Basic Circuit Concepts 12
The Chemistry of Electricity 18
Advances in Electricity 22
Chapter 2
Sources of Electricity 25
Electricity from Chemical Energy 26
Electricity from Light Energy 32
Electricity from Pressure 33
Electricity from Heat 34
Electricity from Magnetism 35
Chapter 3
Conductors and Insulators 39
Wire 40
Fuses 48
Switches 50
Wire Insulation 52
Soldering 53
Electrical Codes 56
Superconductors 57
Contents
Chapter 4
Resistors and Capacitors 61
Resistors 62
Capacitors 74
Chapter 5
Ohm’s Law 87
Three Variables of Ohm’s Law 87
Using Ohm’s Law 89
Power 92
Kilowatt-Hours 93
Body Resistance 98
Chapter 6
Series Circuits 103
Current in a Series Circuit 104
Resistance in a Series Circuit 104
Capacitance in a Series Circuit 108
Polarity 111
Continuity Tester 112
Voltage Drop 113
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