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Encyclopedia of Electrical Engineering
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Electrical Engineering's Table of Contents
Basic Electrical Engineering
History of electrical engineering
Fundamental of Physics
Sources of Electric Energy
Branches of Electrical Engineering
Electricity
Magnetism
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Electrical Circuit Analysis
Electric Circuit
Resistance
Series DC Circuits
Parallel DC Circuits
Series Parallel Circuits
Methods of Analysis
Network Theorems
Capacitors
Magnetic Circuits
Inductors
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Introduction to Computer
Exploring Computer
Types of Computer
Inside the Computer
Interacting with Computers
Inputting Data in Other Ways
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Technology
Profiles
Q & A
Motor Design
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Electrical Engineering
Table of contents
1. Basic Electrical Engineering
1.1. History of electrical engineering
1.2. Fundamental of Physics
1.2.1. Building blocks of matter
1.2.2. Physical Quantities
1.2.2.1. Length
1.2.2.2. Mass
1.2.2.3. Time
1.2.2.4. Density
1.2.3. SI Units
1.2.4. Conversion of Units
1.2.5. Accuracy
1.2.5.1. Systematic Error
1.2.5.2. Random Error
1.2.6. Precision
1.2.7. Mean
1.2.8. Standard Deviation
1.2.9. Significant Figures
1.2.10. Rounding Off
1.2.11. Scalars and Vectors
1.2.12. Coordinates Systems
1.2.13. Motion
1.2.13.1. Displacement
1.2.13.2. Speed
1.2.13.3. Velocity
1.2.13.4. Acceleration
1.2.14. Energy
1.2.15. Power
1.2.16. Efficiency
1.3. Sources of Electric Energy
1.4. Branches of Electrical Engineering
1.4.1. Power Engineering
1.4.2. Electronic Engineering
1.4.3. Computer Engineering
1.4.4. Microelectronics
1.4.5. Control System Engineering
1.4.6. Signal Processing
1.4.7. Telecommunication Engineering
1.4.8. Instrumentation Engineering
1.5. Electricity
1.5.1. Atom and Its Structure
1.5.2. Electric Charge
1.5.3. Electric Field
1.5.3.1. Electric Permittivity
1.5.3.2. Electric Flux
1.5.3.3. Gauss Law
1.5.4. Potential Difference
1.5.5. Voltage Sources
1.5.5.1. Battery
1.5.5.2. Solar Cell
1.5.6. Electrical Measuring Instruments
1.5.6.1. Voltmeter
1.5.6.2. Ammeter
1.5.6.3. Ohmmeter
1.5.6.4. Galvanometer
1.5.6.5. Wattmeter
1.5.6.6. Multimeter
1.5.7. Ampere Hour Rating
1.5.8. Conductance and Insulation
1.5.8.1. Conductor
1.5.8.2. Insulator
1.5.8.3. Semiconductor
1.5.9. Current
1.6. Magnetism
1.6.1. Magnetic Fields
1.6.2. Magnetic Field Strength
1.6.3. Magnetic Flux
1.6.4. Oersted law
1.6.5. Fleming Right and Left Hand Rule
1.6.6. Lorentz Force
1.6.7. Force on a Current Carrying Conductor
1.6.8. Magnetic Field of Current Carrying Conductor
1.6.9. Force between Two Parallel Conductors
2. Introduction to Computer
2.1. Exploring Computer
2.1.1. Computer
2.1.2. Computer Power
2.1.3. Limitations of Computer
2.1.4. Development of Computers
2.1.5. Uses of Computer
2.2. Types of Computer
2.2.1. Computers for Individual Users
2.2.1.1. desktop computer
2.2.1.2. Workstations
2.2.1.3. Notebook Computer
2.2.1.4. Laptop Computer
2.2.1.5. Tablet Computer
2.2.1.6. Handheld Computer
2.2.1.7. Smart Phone
2.2.2. Computers for Organizations
2.2.2.1. Network Servers
2.2.2.2. Mainframe Computer
2.2.2.3. Minicomputers
2.2.2.4. Supercomputers
2.2.3. Computers in Society
2.2.3.1. Why are computers so important
2.2.3.2. Importance of Computers in Home
2.2.3.3. Importance of Computers in Education
2.2.3.4. Importance of Computers in Small Business
2.2.3.5. Importance of Computers in Industry
2.2.3.6. Importance of Computers in Government
2.2.3.7. Importance of Computers in Health Care
2.3. Inside the Computer
2.3.1. Parts of a Computer System
2.3.2. The Information Processing Cycle
2.3.3. Computer Hardware
2.3.3.1. Computer Processing Devices
2.3.3.2. Computer Memory Devices
2.3.3.3. Computer Input and Output Devices
2.3.3.4. Computer Storage Devices
2.3.4. Computer Software
2.3.4.1. System Software
2.3.4.2. Application Software
2.3.5. Computer Data
2.3.6. Computer Users
2.4. Interacting with Computers
2.4.1. The Keyboard
2.4.2. How the Computer Accepts Input from the Keyboard
2.4.3. Saving Time With Keyboard Shortcuts
2.4.4. The Computer Mouse
2.4.4.1. Using the Mouse
2.4.4.2. Mouse Button Configurations
2.4.4.3. Variants of the Mouse
2.4.5. Ergonomics and Input Devices
2.4.6. Computer Voting
2.5. Inputting Data in Other Ways
2.5.1. Devices for the Hand
2.5.1.1. Pens
2.5.1.2. Touch Screens
2.5.1.3. Game Controllers
2.5.2. Optical Input Devices
2.5.2.1. Bar Code Readers
2.5.2.2. Image Scanners and Optical Character Recognition (OCR)
2.5.2.3. Speech Recognition
2.5.3. Audiovisual Input Devices
2.5.3.1. Microphones
2.5.3.2. Other Types of Audio Input
2.5.3.3. Video Input
2.5.3.4. Digital Cameras
2.5.4. Computer Hardware Technician
3. Calculus and Analytical Geometry
4. Differential Equations
5. Programming Fundamentals
6. Engineering Drawing
7. Data Structures & Algorithms
8. Electrical Circuit Analysis
8.1. Electric Circuit
8.1.1. Circuit Elements
8.1.1.1. Active Circuit Elements
8.1.1.2. Passive Circuit Elements
8.1.2. Ohms Law
8.1.3. Open Circuits
8.1.4. Short Circuits
8.2. Resistance
8.2.1. Resistance of Circular Wires
8.2.1.1. Circular Mils
8.2.1.2. Electrical Cables
8.2.1.3. Wire Gauge
8.2.2. Temperature Effect on Resistance
8.2.2.1. Inferred Absolute Temperature
8.2.2.2. Temperature Coefficient of Resistance
8.2.2.3. PPM per degree Centigrade
8.2.3. Resistor
8.2.4. Color coding and Standard Resistor Values
8.2.5. Metric Units of Resistance
8.3. Series DC Circuits
8.3.1. Series Circuit
8.3.2. Circuit Instrumentation
8.3.3. Series Circuit Power Distribution
8.3.4. Series Voltage Sources
8.3.5. Kirchhoffs Voltage Law
8.3.6. Voltage Division in a Series Circuit
8.3.7. Interchanging Series Elements
8.3.8. Circuit Analysis Notation
8.3.8.1. Single and Double Subscript Notation
8.3.9. Internal Resistance of Voltage Sources
8.3.10. Voltage Regulation
8.3.11. Loading Effects of Instruments
8.4. Parallel DC Circuits
8.4.1. Parallel Circuits
8.4.2. Power Distribution
8.4.3. Kirchhoffs Current law
8.4.4. Current Divider Rule
8.4.5. Voltage Sources in Parallel
8.4.6. Voltmeter Loading Effect
8.4.7. Troubleshooting Techniques
8.4.8. Parallel DC Circuits Applications
8.5. Series Parallel Circuits
8.5.1. Reduce and Return Approach
8.5.2. Block Diagram Approach
8.5.3. Ladder Networks
8.5.4. Voltage Divider Supply
8.5.5. Potentiometer Loading
8.5.6. Iron Vane Movement
8.5.6.1. Ammeter Design
8.5.6.2. Voltmeter Design
8.5.6.3. Ohmmeter Design
8.6. Methods of Analysis
8.6.1. Current Sources
8.6.1.1. Source Conversion
8.6.1.2. Current Sources in Parallel
8.6.1.3. Current Sources in Series
8.6.2. Branch Current Analysis
8.6.3. Mesh Analysis
8.6.4. Mesh Analysis with Current Sources
8.6.5. Nodal Analysis
8.6.6. Nodal Analysis with Voltage Sources
8.6.7. Bridge Networks
8.6.8. Star Delta Transformation
8.7. Network Theorems
8.7.1. Linearity Property
8.7.2. Superposition Theorem
8.7.3. Thevenins Theorem
8.7.4. Nortons Theorem
8.7.5. Maximum Power Transfer Theorem
8.7.6. Application of Maximum Power Transfer Method
8.7.7. Millmans Theorem
8.7.8. Substitution Theorem
8.7.9. Reciprocity Theorem
8.8. Capacitors
8.8.1. Capacitance
8.8.2. Types of capacitor
8.8.3. Initial Conditions of capacitor
8.8.4. Capacitor Charging Phase
8.8.5. Capacitor Discharging Phase
8.8.6. Instantaneous Values of Capacitor
8.8.7. Thevenin Equivalent Circuit of Capacitor
8.8.8. Current through capacitor
8.8.9. Capacitors in series and parallel
8.8.10. Energy Stored by a Capacitor
8.8.11. Stray Capacitance
8.9. Magnetic Circuits
8.9.1. Magnetic Flux Density
8.9.2. Permeability
8.9.3. Magnetic Reluctance
8.9.4. Ohms Law for Magnetic Circuits
8.9.5. Magnetizing Force
8.9.6. Hysteresis Curve
8.9.7. Domain Theory of Magnetism
8.9.8. Amperes Circuital Law
8.9.9. Series Magnetic Circuits
8.9.10. Magnetic Circuit Air Gaps
8.9.11. Series and Parallel Magnetic Circuits
8.9.12. Application of Magnetic circuits
8.9.12.1. Speakers and Microphones
8.9.12.2. Computer Hard Disks
8.9.12.3. Hall Effect Sensor
8.9.12.4. Magnetic Reed Switch
8.9.12.5. Magnetic Resonance Imaging
8.10. Inductors
8.10.1. Faradays Law of Induction
8.10.2. Lenz law
8.10.3. Self Inductance
8.10.4. Types of Inductors
8.10.5. Inductor values
8.10.6. Induced Voltage
8.10.7. Transient Response of RL Circuit
8.10.8. Initial Values of an Inductor
8.10.9. Decay of Current in RL Circuit
8.10.10. Thevenin Equivalent Circuit of Inductor
8.10.11. Inductors in Series and Parallel
8.10.12. RL and RLC Circuits with DC Inputs
8.10.13. Energy Stored by an Inductor
8.10.14. Applications of inductor
8.11. Sinusoidal Alternating Waveforms
8.11.1. Sinusoidal AC Voltage Generation
8.11.2. Sinusoidal AC Waveform Definitions
8.11.3. The Sine Wave
8.11.4. General Format for the Sinusoidal Voltage or Current
8.11.5. Phase Relationship of a Sinusoidal Waveform
8.11.6. Average Value of Sinusoidal Waveform
8.11.7. Root Mean Square value of Sinusoidal waveform
8.11.8. AC meters and Instruments
8.12. Basic Elements of AC Circuit and Phasors
8.12.1. The Derivative of Sinusoidal Waveform
8.12.2. Response of Resistor to a Sinusoidal Voltage
8.12.3. Response of Inductor to a Sinusoidal Voltage
8.12.4. Response of Capacitor to a Sinusoidal Voltage
8.12.5. Frequency Effects on L and C in DC Circuits
8.12.6. Frequency Response of the Basic Elements
8.12.7. Average Power of Sinusoidal Voltage
8.12.8. AC Power Factor
8.12.9. Complex Numbers
8.12.9.1. Rectangular Form
8.12.9.2. Polar Form
8.12.9.3. Conversation between Complex Number Forms
8.12.9.4. Mathematical Operations with Complex Numbers
8.12.10. Phasors
8.13. Series and Parallel ac Circuits
8.13.1. Impedance and the Phasor Diagram
8.13.1.1. Impedance of Resistive Elements
8.13.1.2. Impedance of Inductive Reactance
8.13.1.3. Impedance of Capacitive Reactance
8.13.1.4. Impedance Diagram
8.13.2. AC Series Configuration
8.13.2.1. RL Series Circuit
8.13.2.2. RC Series Circuit
8.13.2.3. RLC Series Circuit
8.13.3. AC Voltage Divider Rule
8.13.4. Frequency Response of the RC Circuit
8.13.5. SUMMARY of Series AC Circuits
8.13.6. Admittance and Susceptance
8.13.7. Parallel ac Networks
8.13.7.1. RL Parallel Circuit
8.13.7.2. RC Parallel Circuit
8.13.7.3. RLC Parallel Circuit
8.13.8. Current Divider Rule of ac Circuits
8.13.9. Frequency Response of Parallel RL Network
8.13.10. Parallel ac Networks Summary
8.13.11. AC Equivalent Circuit
8.13.12. Phase Shift Measurement with Dual Trace Oscilloscope
8.13.13. Application of Series and Parallel ac Circuits
8.13.13.1. Home Wiring
8.13.13.2. Speaker Systems
8.14. Methods of Analysis of AC Network
8.14.1. Independent Versus Dependent Controlled Sources
8.14.2. Source Conversion of ac Circuits
8.14.3. Mesh Analysis for ac Circuits
8.14.4. Nodal Analysis for ac Circuits
8.14.5. AC Bridge Networks
8.14.6. Star Delta Transformation (AC)
8.15. Network Theorem (AC)
8.15.1. Superposition Theorem (ac)
8.15.2. Thevenins Theorem (ac)
8.15.3. Nortons Theorem (ac)
8.15.4. Maximum Power Transfer Theorem (ac)
8.16. Power (AC)
8.16.1. Resistive (AC) Circuit Power Calculation
8.16.2. Apparent Power
8.16.3. Reactive Power in Inductive Circuit
8.16.4. Reactive Power in Capacitive Circuit
8.16.5. The Power Triangle
8.16.6. The Total Apparent, Active and Reactive Power
8.16.7. Power Factor Correction
8.16.8. Wattmeters and Power Factor Meters
8.16.9. Effective Resistance
8.17. Resonance
8.17.1. Series Resonant Circuit
8.17.2. The Quality Factor (Q)
8.17.3. Total Impedance Versus Frequency
8.17.4. Selectivity of Frequency
8.17.5. Magnitudes of Voltages across RLC versus Frequency
8.17.6. Examples of Series Resonance Circuits
8.17.7. Parallel Resonant Circuit
8.17.7.1. Resonace Frequency of a Parallel Resonant Circuit
8.17.8. Selectivity Curve for Parallel Resonant Circuits
8.17.9. Effect of Quality Factor greater than or Equal to 10
8.17.9.1. Inductive Reactance
8.17.9.2. Resonant Frequency (Unity Power Factor)
8.17.9.3. Parallel Resistance across Inductance
8.17.9.4. Total impedance at resonance
8.17.9.5. Quality Factor
8.17.9.6. Bandwidth (BW)
8.17.9.7. Current through Capacitor and Inductor
8.17.10. Examples of Parallel Resonance
8.17.11. Applications of Resonance Circuits
8.18. Transformer
8.18.1. Mutual Inductance
8.18.2. The Iron Core Transformer
8.18.3. Reflected Impedance and Power
8.18.3.1. Transformer as a Impedance Matching
8.18.3.2. Transformer as an Isolation Device
8.18.4. Iron Core Transformer Equivalent Circuit
8.18.5. Transformer Frequency Considerations
8.18.6. Series Connection of Mutually Coupled Coils
8.18.7. Air Core Transformer
8.18.8. Transformer Nameplate Data
8.18.9. Types of Transformers
8.18.10. Tapped and Multiple Load Transformers
8.18.11. Networks with Magnetically Coupled Coils
8.18.12. Applications of Transformer
8.18.12.1. Transformer for Low Voltage Compensation
8.18.12.2. Ballast Transformer
8.19. Polyphase Systems
8.19.1. The Three Phase Generator
8.19.2. The Y Connected Generator
8.19.2.1. Phase Sequence (Y CONNECTED GENERATOR)
8.19.2.2. Y connected Generator connected to a Y connected load
8.19.3. The Y Delta System
8.19.4. The Delta Connected Generator
8.19.5. The Delta Delta, Delta Y Three Phase Systems
8.19.6. Power Calculation of Y Connected Balanced Load
8.19.7. Power Calculation of Delta Connected Balanced Load
8.19.8. The Three Wattmeter Method
8.19.9. The Two Wattmeter Method
8.19.10. Unbalanced Three phase Four wire, Y Connected Load
8.19.11. Unbalanced, Three phase, Three wire, Y Connected Load
8.20. Frequency Response
8.20.1. Logarithm
8.20.2. Decibels
8.20.2.1. Decibels with Power Gain
8.20.2.2. Decibels with Voltage Gain
8.20.2.3. The Human Auditory Response
8.20.2.4. Decibels Instrumentations
8.20.3. Transfer Function
8.20.4. Filters
8.20.4.1. RC Low Pass Filters
8.20.4.2. RC High Pass Filters
8.20.4.3. Pass Band Filters
8.20.4.4. Stop Band Filters
8.20.4.5. Double Tuned Filters
8.20.5. Bode Plots
8.20.5.1. High Pass RC Filter
8.20.5.2. Low Pass RC Filter
8.20.6. Sketching the Bode Response
8.20.7. Low Pass Filter with Limited Attenuation
8.20.8. High Pass Filter with Limited Attenuation
8.20.9. Crossover Networks
8.20.10. Application of Filters
8.20.10.1. Attenuators
8.20.10.2. Noise Filters
8.21. Pulse Waveform and the RC Response
8.21.1. Ideal versus Actual Pulse Waveform
8.21.2. Properties of a Pulse Waveform
8.21.3. Pulse Repetition Rate and Duty Cycle
8.21.4. Average Value of a Pulse Waveform
8.21.5. Transient in RC Network
8.21.6. RC Response to Square Wave Inputs
8.21.7. Oscilloscope Attenuator
8.21.8. Compensating Attenuator Probe
8.21.9. Application of Pulse Waveform
8.22. The Laplace Transform
8.22.1. Properties of The Laplace Transform
8.22.1.1. Linearity Property of The Laplace Transform
8.22.1.2. Scaling Property of The Laplace Transform
8.22.1.3. Time Shift Property of The Laplace Transform
8.22.1.4. Frequency Shift Property of The Laplace Transform
8.22.1.5. Time Differentiation Property of The Laplace Transform
8.22.1.6. Time Integral Property of The Laplace Transform
8.22.1.7. Frequency Differentiation Property of The Laplace Transform
8.22.1.8. Time Periodicity Property of The Laplace Transform
8.22.1.9. Initial and Final Values Properties of The Laplace Transform
8.22.2. List of the Properties of The Laplace Transform
8.22.3. Examples of The Laplace Transform
8.22.4. The Inverse Laplace Transform
8.22.4.1. Simple Poles
8.22.4.2. Repeated Poles
8.22.4.3. Complex Poles
8.22.5. Examples of The Inverse Laplace Transform
8.22.6. Circuit Application of The Laplace Transform
8.22.7. Transfer Function of The Laplace Transform
8.22.8. The Convolution Integral
8.22.9. Application to Integrodifferential Equations
8.22.10. Application of The Laplace Transform to the Network Stability
8.22.11. Application of The Laplace Transform to the Network Synthesis
8.23. The Fourier Series
8.23.1. Trigonometric Fourier Series
8.23.2. Symmetry Considerations of The Fourier Series
8.23.2.1. Even Symmetry
8.23.2.2. Odd Symmetry
8.23.2.3. Half Wave Symmetry
8.23.3. Common Functions of The Fourier Series
8.23.4. Circuit Application of The Fourier Series
8.23.5. Average Power and RMS Values of The Fourier Series
8.23.6. Exponential Fourier Series
8.23.7. Application of the Fourier Series to Spectrum Analyzers
8.23.8. Application of the Fourier Series to Filters
8.24. Fourier Transform
8.24.1. Properties of the Fourier Transform
8.24.1.1. Linearity property of the Fourier Transform
8.24.1.2. Time Scaling property of the Fourier Transform
8.24.1.3. Time Shifting property of the Fourier Transform
8.24.1.4. Frequency Shifting property of the Fourier Transform
8.24.1.5. Time Differenciation property of the Fourier Transform
8.24.1.6. Time Integration property of the Fourier Transform
8.24.1.7. Reversal property of the Fourier Transform
8.24.1.8. Duality property of the Fourier Transform
8.24.1.9. Convolution property of the Fourier Transform
8.24.1.10. Summary of the Properties of the Fourier Transform
8.24.2. Examples of the Fourier Transform
8.24.3. Examples of the Inverse Fourier Transform
8.24.4. Circuit Application of the Fourier Transform
8.24.5. Parsevals Theorem
8.24.6. Comparing the Fourier and Laplace Transform
8.24.7. Application of the Fourier Transform to the Amplitude Modulation
8.24.8. Application of the Fourier Transform to the Sampling
8.25. Two Port Networks
8.25.1. Impedance Parameters
8.25.2. Admittance Parameters
8.25.3. Hybrid Parameters
8.25.4. Transmission Parameters
8.25.5. Relationships between Parameters
8.25.6. Interconnection of Networks
8.25.7. Application of the Two Port Networks to the Transistor Circuits
8.25.8. Application of the Two Port Networks to the Ladder Network Synthesis
8.26. Nonsinusoidal Circuits
8.26.1. Circuit Response to a Nonsinusoidal Input
8.26.2. Addition and Subtraction of Nonsinusoidal Waveforms
9. Complex Variables and Transforms
10. Thermodynamics
11. Electronic Devices and Circuits
12. Signals and Systems
13. Microprocessor Systems
14. Communication Skills
15. Probability & Random Variables
16. Electromagnetic Field Theory
17. Electrical Machines
18. Communication Systems
19. Digital Signal Processing
20. Control Systems
21. Instrumentation and Measurements
22. Engineering Project Management
23. Information Theory and Coding
24. Transmission and Switching Systems
25. Wireless and Mobile Communications
26. Digital Image Processing
27. Power Distribution and Utilization
28. Microwave Devices
29. RF and Microwave Engineering
30. Navigation and Radar Systems
31. Computer Communication Networks
32. Solid State Devices
33. Optical Communication
34. Satellite Engineering
35. Electrical Power Transmission
36. Analog and Digital Communication Systems
37. Introduction to Nano Technology
38. Verilog HDL
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