CircuitAnalysis Demystified Demystified Series AccountingDemystified MacroeconomicsDemystified AdvancedCalculusDemystified ManagementAccountingDemystified AdvancedPhysicsDemystified MathProofsDemystified AdvancedStatisticsDemystified MathWordProblemsDemystified AlgebraDemystified MATLAB(cid:1)r Demystified AlternativeEnergyDemystified MedicalBillingandCoding AnatomyDemystified Demystified asp.net2.0Demystified MedicalTerminologyDemystified AstronomyDemystified MeteorologyDemystified AudioDemystified MicrobiologyDemystified BiologyDemystified MicroeconomicsDemystified BiotechnologyDemystified NanotechnologyDemystified BusinessCalculusDemystified NurseManagementDemystified BusinessMathDemystified OOPDemystified BusinessStatisticsDemystified OptionsDemystified C++Demystified OrganicChemistryDemystified CalculusDemystified PersonalComputingDemystified ChemistryDemystified PharmacologyDemystified CircuitAnalysisDemystified PhysicsDemystified CollegeAlgebraDemystified PhysiologyDemystified CorporateFinanceDemystified Pre-AlgebraDemystified DatabasesDemystified PrecalculusDemystified DataStructuresDemystified ProbabilityDemystified DifferentialEquationsDemystified ProjectManagementDemystified DigitalElectronicsDemystified PsychologyDemystified EarthScienceDemystified QualityManagementDemystified ElectricityDemystified QuantumMechanicsDemystified ElectronicsDemystified RealEstateMathDemystified EngineeringStatisticsDemystified RelativityDemystified EnvironmentalScienceDemystified RoboticsDemystified EverydayMathDemystified SalesManagementDemystified FertilityDemystified SignalsandSystemsDemystified FinancialPlanningDemystified SixSigmaDemystified ForensicsDemystified SpanishDemystified FrenchDemystified sqlDemystified GeneticsDemystified StaticsandDynamicsDemystified GeometryDemystified StatisticsDemystified GermanDemystified TechnicalAnalysisDemystified HomeNetworkingDemystified TechnicalMathDemystified InvestingDemystified TrigonometryDemystified ItalianDemystified umlDemystified JavaDemystified VisualBasic2005Demystified JavaScriptDemystified VisualC#2005Demystified LeanSixSigmaDemystified VitaminsandMineralsDemystified LinearAlgebraDemystified xmlDemystified CircuitAnalysis Demystified David McMahon NewYork Chicago SanFrancisco Lisbon London Madrid MexicoCity Milan NewDelhi SanJuan Seoul Singapore Sydney Toronto Copyright © 2008 by The McGraw-Hill Companies, Inc. 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This page intentionally left blank For more information about this title, click here CONTENTS Preface xiii Acknowledgments xv CHAPTER 1 An Introduction to Circuit Analysis 1 What Is Circuit Analysis? 2 Electric Current 2 Current Arrows 9 Voltage 11 Time Varying Voltage and Voltage Sources 13 Dependent Voltage Sources 16 Current Sources 16 Open and Short Circuits 18 Power 19 Conservation of Energy 22 Summary 23 Quiz 23 CHAPTER 2 Kirchhoff’s Laws and Resistance 25 Branches, Nodes, and Loops 25 Kirchhoff’s Current Law 26 Kirchhoff’s Voltage Law 28 The Resistor 31 Power in a Resistor 33 Circuit Analysis with Resistors 34 Circuit Analysis Demystified viii Root Mean Square (RMS) Values 37 Voltage and Current Dividers 41 More Examples 46 Summary 53 Quiz 54 CHAPTER 3 Thevenin’s and Norton’s Theorems 58 Thevenin’s Theorem 59 Step One: Disconnect the Outside Network 60 Step Two: Set Independent Sources to Zero 61 Step Three: Measure the Resistance at Terminals A and B 61 Series and Parallel Circuits 61 Back to Thevenin’s Theorem 67 Thevenin’s Theorem Using the Karni Method 77 Norton’s Theorem and Norton Equivalent Circuits 82 Summary 84 Quiz 84 CHAPTER 4 Network Theorems 86 Superposition 86 Millman’s Theorem 93 Quiz 96 CHAPTER 5 Delta–Wye Transformations and Bridge Circuits 97 Delta–Wye Transformations 97 Bridge Circuits 101 Quiz 102 CHAPTER 6 Capacitance and Inductance 103 The Capacitor 103 Capacitors in Parallel or Series 104 Voltage–Current Relations in a Capacitor 106 Voltage in Terms of Current 107