Electricity

Table of Contents

Introduction...............................................................................2 Electron.Theory..........................................................................4 Conductors,.Insulators.and.Semiconductors.............................5 Electric.Charges. .......................................................................7 .Current......................................................................................9 . Voltage. ...................................................................................  . Resistance............................................................................... 3 Simple.Electric.Circuit. ............................................................ 5 .Ohm’s.Law.............................................................................. 6 DC.Series.Circuit..................................................................... 8 DC.Parallel.Circuit....................................................................23 Series-Parallel.Circuits.............................................................30 Power......................................................................................34. Magnetism..............................................................................37 Electromagnetism...................................................................39 Introduction.to.AC. ..................................................................42 . AC.Generators.........................................................................44Frequency................................................................................47 Voltage.and.Current.................................................................48 Inductance...............................................................................5 Capacitance.............................................................................56 Inductive.and.Capacitive.Reactance........................................6Series.R-L-C.Circuit..................................................................67 Parallel.R-L-C.Circuit.................................................................69 Power.and.Power.Factor.in.an.AC.Circuit................................. 7 Transformers............................................................................75Three-Phase.Transformers.......................................................80 Review.Answers......................................................................83 Final.Exam...............................................................................84 quickSTEP.Online.Courses......................................................88 

Introduction

Welcome.to.the.first.course.in.the.STEP.series,.Siemens.Technical.Education.Program.designed.to.prepare. our.distributors.to.sell.Siemens.Energy.&.Automation.products. more.effectively..This.course.covers.Basics.of.Electricity.and.is. designed.to.prepare.you.for.subsequent.courses.on.Siemens. Energy.&.Automation.products. Upon.completion.of.Basics.of.Electricity.you.will.be.able.to:

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Explain.the.difference.between.conductors.and.insulatorsUse.Ohm’s.Law.to.calculate.current,.voltage,.and. resistance Calculate.equivalent.resistance.for.series,.parallel,.or. series-parallel.circuits Calculate.voltage.drop.across.a.resistor Calculate.power.given.other.basic.values Identify.factors.that.determine.the.strength.and.polarity.of. a.current-carrying.coil’s.magnetic.field Determine.peak,.instantaneous,.and.effective.values.of.an. AC.sine.waveIdentify.factors.that.effect.inductive.reactance.and. capacitive.reactance.in.an.AC.circuit Calculate.total.impedance.of.an.AC.circuit Explain.the.difference.between.real.power.and.apparent. power.in.an.AC.circuit Calculate.primary.and.secondary.voltages.of.single-phase. and.three-phase.transformers Calculate.kVA.of.a.transformer

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