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TERMINAL OBJECTIVE - h1011v1_22
ENABLING OBJECTIVES (Cont.) - h1011v1_23
ENABLING OBJECTIVES (Cont.) - h1011v1_24
ATOM AND ITS FORCES
Electrostatic Force
The First Law of Electrostatics
Figure 5 Electrostatic Field Between Two Charges of Opposite Polarity
Potential Difference
Free Electrons - h1011v1_30
Free Electrons - h1011v1_31
Forces Around Atoms Summary
ELECTRICAL TERMINOLOGY
Voltage
Figure 9 Electron Flow Through a Copper Wire with a Potential Difference
Real and Ideal Sources
UNITS OF ELECTRICAL MEASUREMENT
Ohms Law - h1011v1_38
Ohms Law - h1011v1_39
Conductance
Inductance - h1011v1_41
Electrical Units Summary
METHODS OF PRODUCING VOLTAGE (ELECTRICITY)
Static Electricity
Magnetic Induction - h1011v1_45
Thermoelectricity
Photoelectric Effect
Thermionic Emission
Figure 17 Vacuum Tube Diode
Methods of Producing Electricity Summary
MAGNETISM
Figure 19 Magnetic Domains
Magnetic Flux Density
Magnetic Materials
Polarity of a Single Conductor
Magnetic Field and Polarity of a Coil
Magnetomotive Force
Field Intensity
Reluctance
Magnetism Summary
MAGNETIC CIRCUITS
Figure 26 Magnetic Current with Closed Iron Path
BH Magnetization Curve
Hysteresis
Magnetic Induction - h1011v1_65
Faradays Law of Induced Voltage
Lenzs Law
Magnetic Circuits Summary
ELECTRICAL SYMBOLS
Figure 30 Electrical Symbols
Electrical Symbols Summary
Appendix A BASIC ELECTRICAL THEORY
Appendix A METRIC SYSTEM AND POWERS OF TEN
TABLE A-2 SUPPLEMENTARY SI UNIT
TABLE A-3 DERIVED SI UNITS
TABLE A-4 METRIC PREFIXES USED in ELECTRICITY
TABLE A-5 POWERS of 10
Rules associated with powers of ten - h1011v1_80
Rules associated with powers of ten - h1011v1_81
TABLE A-6 METRIC PREFIXES EXPRESSED as POWERS of 10 - h1011v1_82
TABLE A-6 METRIC PREFIXES EXPRESSED as POWERS of 10 - h1011v1_83
ELECTRICAL SCIENCE Module 2 Basic DC Theory
TABLE OF CONTENTS - h1011v1_87
TABLE OF CONTENTS (Cont.) - h1011v1_88
LIST OF FIGURES - h1011v1_89
LIST OF FIGURES (Cont.) - h1011v1_90
LIST OF FIGURES (Cont.) - h1011v1_91
LIST OF TABLES - h1011v1_92
REFERENCES - h1011v1_93
TERMINAL OBJECTIVE - h1011v1_94
ENABLING OBJECTIVES (Cont.) - h1011v1_95
DC SOURCES
DC Generator
Thermocouples - h1011v1_99
Figure 3 Production of a DC Voltage Using a Thermocouple
Rectifiers
Figure 4 Forward-Biased Diode
Reverse Bias
Half-Wave Rectifier Circuit
Full-Wave Rectifier Circuit
Figure 8 Bridge Rectifier Circuit
Summary
DC CIRCUIT TERMINOLOGY
One-Line Diagram
Block Diagram
Wiring Diagram
Resistivity
Temperature Coefficient of Resistance
Electric Circuit
Figure 14 Open Circuit
Series Circuit
Parallel Circuit
Summary - h1011v1_118
BASIC DC CIRCUIT CALCULATIONS
Figure 18 Resistance in a Series Circuit
Figure 19 Voltage Drops in a Series Circuit
Figure 20 Voltage Total in a Series Circuit
Figure 21 Example 1 Series Circuit
Figure 22 Example 2 Series Circuit
Parallel Currents
Figure 23 Example 1 Parallel Circuit
Figure 25 Example 3 Parallel Circuit
Resistance in Parallel
Figure 27 Total Resistance in a Parallel Circuit
Simplified Formulas - h1011v1_130
Simplified Formulas - h1011v1_131
Voltage Divider
Figure 29 Voltage Divider
Current Division
Summary - h1011v1_135
VOLTAGE POLARITY AND CURRENT DIRECTION
Summary - h1011v1_137
KIRCHHOFFS LAWS
Kirchhoffs Voltage Law
Applying Kirchhoffs Voltage Law
Kirchhoffs Current Law
Figure 35 Illustration of Kirchhoffs Current Law
Figure 36 Using the Current Law
Summary - h1011v1_144
DC CIRCUIT ANALYSIS
Figure 38 Assumed Direction of Current Flow
Figure 40 Applying Voltage Law to Loop 1
Loop 2 equation
Figure 41 Applying Voltage Laws to Outer Loop
Node Equations
Figure 43 Node Point
Figure 44 Circuit for Node Analysis
Figure 45 Node - Voltage Analysis
Series-Parallel Circuit Analysis
Figure 46 Redrawn Circuit Example
Y and Delta Network Calculation
Figure 48 p (pi) or D (delta) Network
Figure 49 Y - D Equivalent
Figure 50 Bridge Circuit
Figure 51 Y - D Redrawn Circuit
DC Circuit Analysis Summary
DC CIRCUIT FAULTS
Open Circuit (Parallel)
Short Circuit (Series)
Summary - h1011v1_165