2.1 Theory of Electronics2.2 Electric Current2.2.1 Currents in Perspective2.3 Voltage2.3.1 The Mechanisms of Voltage2.3.2 Definition of Volt and Generalized Power Law2.3.3 Combining Batteries2.3.4 Other Voltage Sources2.3.5 Water Analogies2.4 A Microscopic View of Conduction (for Those Who Are Interested)2.4.1 Applying a Voltage2.5 Resistance, Resistivity, Conductivity2.5.1 How the Shape of a Conductor Affects Resistance2.5.2 Resistivity and Conductivity2.6 Insulators, Conductors, and Semiconductors2.7 Heat and Power2.8 Thermal Heat Conduction and Thermal Resistance2.8.1 Importance of Heat Production2.9 Wire Gauges2.10 Grounds2.10.1 Earth Ground2.10.2 Different Types of Ground Symbols2.10.3 Loose Ends on Grounding2.11 Electric Circuits2.12 Ohm’s Law and Resistors2.12.1 Resistor Power Ratings2.12.2 Resistors in Parallel2.12.3 Resistors in Series2.12.4 Reducing a Complex Resistor Network2.12.5 Multiple Voltage Dividers2.13 Voltage and Current Sources2.14 Measuring Voltage, Current, and Resistance2.15 Combining Batteries2.16 Open and Short Circuits2.17 Kirchhoff’s Laws2.18 Superposition Theorem2.19 Thevenin’s and Norton’s Theorems2.19.1 Thevenin’s Theorem2.19.2 Norton’s Theorem2.20 AC Circuits2.20.1 Generating AC2.20.2 Water Analogy of AC2.20.3 Pulsating DC2.20.4 Combining Sinusoidal Sources2.20.5 AC Waveforms2.20.6 Describing an AC Waveform2.20.7 Frequency and Period2.20.8 Phase2.21 AC and Resistors, RMS Voltage, and Current2.22 Mains Power