## Book description

Attuned to the needs of undergraduate students of engineering in their first year, Basic Electrical Engineering enables them to build a strong foundation in the subject. A large number of real-world examples illustrate the applications of complex theories. The book comprehensively covers all the areas taught in a one-semester course and serves as an ideal study material on the subject.

1. Cover
2. Title page
3. Brief Contents
4. Contents
5. Dedication
6. Preface
7. Chapter 1 Concepts of Circuit Theory
1. 1.1 Introduction
2. 1.2 Electricity
3. 1.3 Modern electron theory
4. 1.4 Nature of electricity
5. 1.5 Charged body
6. 1.6 Unit of charge
7. 1.7 Free electrons
8. 1.8 Electric potential
9. 1.9 Potential difference
10. 1.10 Electric current
11. 1.11 Resistance
12. 1.12 Resistivity
13. 1.13 Specific resistance
14. 1.14 Conductance
15. 1.15 Electromotive force
16. 1.16 EMF and potential difference
17. 1.17 Ohm’s law
18. 1.18 Effect of temperature on resistance
19. 1.19 Temperature co-efficient of resistance
20. 1.20 Temperature co-efficient of copper at 0°C
21. 1.21 Effect of temperature on α
22. 1.22 Effect of temperature on resistivity
23. 1.23 Electrical energy
24. 1.24 Electrical power
25. 1.25 Mechanical work
26. 1.26 Mechanical power
27. 1.27 Heat energy
28. 1.28 Joules law of electrical heating
29. 1.29 Relation between various quantities
30. 1.30 D.C. Circuits
31. 1.31 Series circuits
32. 1.32 Parallel circuits
33. 1.33 Seriesparallel circuits
34. 1.34 Division of current in parallel circuits
8. Chapter 2 DC Circuit Analysis and Network Theorems
1. 2.1 Introduction
2. 2.2 Electric network
3. 2.3 Voltage and current sources
4. 2.4 Source transformation (conversion of voltage source to current source and vice versa)
5. 2.5 Kichhoff’s laws
6. 2.6 Wheatstone bridge
7. 2.7 Maxwell’s mesh current method (loop analysis)
8. 2.8 Nodal analysis
9. 2.9 Deltastar and stardelta transformation
10. 2.10 Superposition theorem
11. 2.11 Thevenin’s theorem
12. 2.12 Norton’s theorem
13. 2.13 Conversion of thevenin’s equivalent into norton’s equivalent and vice versa
14. 2.14 Maximum power transfer theorem
15. 2.15 Reciprocity theorem
9. Chapter 3 Electrostatics and Capacitors
1. 3.1 Introduction
2. 3.2 Coulomb’s laws of electrostatics
3. 3.3 Absolute and relative permittivity
4. 3.4 Electric field
5. 3.5 Electric flux
6. 3.6 Electric flux density (D)
7. 3.7 Electric intensity or field strength (E)
8. 3.8 Relation between σ and E
9. 3.9 Area vector
10. 3.10 Electric flux through an area
11. 3.11 Different ways of charge distribution
12. 3.12 Gauss theorem of electrostatics
13. 3.13 Deduction of coulomb’s law from gauss’s law
14. 3.14 Electric intensity due to a charged sphere
15. 3.15 Electric intensity due to a long charged conductor
16. 3.16 Electric potential
17. 3.17 Electric potential difference
18. 3.18 Potential due to charged sphere
20. 3.20 Breakdown potential or dielectric strength
21. 3.21 Capacitor
22. 3.22 Capacitance
23. 3.23 Parallel-plate capacitor with composite medium
24. 3.24 Multi-plate capacitors
25. 3.25 Grouping of capacitors
26. 3.26 Energy stored in a capacitor
10. Chapter 4 Batteries
1. 4.1 Introduction
2. 4.2 Electric cell
3. 4.3 Types of cells
4. 4.4 Important terms relating to an electric cell
5. 4.5 Grouping of cells
6. 4.6 Battery
7. 4.7 Capacity of a battery
8. 4.8 Efficiency of a battery
9. 4.9 Charge indications of a lead-acid battery or cell
10. 4.10 Charging of lead—acid battery
11. 4.11 Care and maintenance of lead—acid batteries
12. 4.12 Applications of lead—acid batteries
13. 4.13 Nickel—iron alkaline cell
14. 4.14 Comparison between lead—acid and nickel—iron alkaline cell
17. 4.17 Solar cells
11. Chapter 5 Magnetic Circuits
1. 5.1 Introduction
2. 5.2 Magnetic field and its significance
3. 5.3 Magnetic circuit and its analysis
4. 5.4 Important terms
5. 5.5 Comparison between magnetic and electric circuits
6. 5.6 Ampere turns calculations
7. 5.7 Series magnetic circuits
8. 5.8 Parallel magnetic circuits
9. 5.9 Leakage flux
10. 5.10 Magnetisation or B—H curve
11. 5.11 Magnetic hysteresis
12. 5.12 Hysteresis loss
13. 5.13 Importance of hysteresis loop
14. 5.14 Electromagnetic induction
15. 5.15 Faraday’s laws of electromagnetic induction
16. 5.16 Direction of induced emf
17. 5.17 Induced emf
18. 5.18 Dynamically induced emf
19. 5.19 Statically induced emf
20. 5.20 Self-inductance
21. 5.21 Mutual inductance
22. 5.22 Co-efficient of coupling
23. 5.23 Inductances in series and parallel
24. 5.24 Energy stored in a magnetic field
25. 5.25 Ac excitation in magnetic circuits
26. 5.26 Eddy current loss
12. Chapter 6 AC Fundamentals
13. Chapter 7 Single-phase AC Circuits
1. 7.1 Introduction
2. 7.2 AC circuit containing resistance only
3. 7.3 AC circuit containing pure inductance only
4. 7.4 AC circuit containing pure capacitor only
5. 7.5 AC series circuits
6. 7.6 R—L series circuit
7. 7.7 Impedance triangle
8. 7.8 True power and reactive power
9. 7.9 Power factor and its importance
10. 7.10 Q-factor of a coil
11. 7.11 R—C series circuit
12. 7.12 R—L—C series circuit
13. 7.13 Series resonance
14. 7.14 Resonance curve
15. 7.15 Q-factor of series resonant circuit
16. 7.16 AC parallel circuits
17. 7.17 Methods of solving parallel ac circuits
18. 7.18 Phasor (or vector) method
20. 7.20 Method of phasor algebra or symbolic method or J-method
21. 7.21 J-notation of phasor on rectangular co-ordinate axes
22. 7.22 Addition and subtraction of phasor quantities
23. 7.23 Multiplication and division of phasors
24. 7.24 Conjugate of a complex number
25. 7.25 Powers and roots of phasors
26. 7.26 Solution of series and parallel ac circuits by phasor algebra
27. 7.27 Parallel resonance
28. 7.28 Q-factor of a parallel resonant circuit
29. 7.29 Comparison of series and parallel resonant circuits
14. Chapter 8 Three-phase AC Circuits
1. 8.1 Introduction
2. 8.2 Polyphase system
3. 8.3 Advantages of three-phase system over single-phase system
4. 8.4 Generation of three-phase emfs
5. 8.5 Naming the phases
6. 8.6 Phase sequence
7. 8.7 Double-subscript notation
8. 8.8 Interconnection of three phases
9. 8.9 Star or wye (Y) connection
10. 8.10 Mesh or delta (∆) connection
11. 8.11 Connections of three-phase loads
12. 8.12 Power in three-phase circuits
13. 8.13 Power measurement in three-phase circuits
14. 8.14 Three-wattmeter method
15. 8.15 Two-wattmeter method
16. 8.16 Two-wattmeter method (balanced load)
17. 8.17 Effect of power factor on the two wattmeter readings
15. Chapter 9 Measuring Instruments
1. 9.1 Introduction
2. 9.2 Concept of measurements
3. 9.3 Instruments and their classification
4. 9.4 Methods of providing controlling torque
5. 9.5 Methods of providing damping torque
6. 9.6 Measuring errors
7. 9.7 Errors common to all types of instruments
8. 9.8 Moving iron instruments
9. 9.9 Permanent magnet moving coil instruments
10. 9.10 Difference between ammeter and voltmeter
11. 9.11 Extension of range of ammeters and voltmeters
12. 9.12 Dynamometer-type instruments
13. 9.13 Induction-type instruments
14. 9.14 Name plate of energy meter
15. 9.15 Connections of single-phase energy meter to supply power to a domestic consumer
16. 9.16 Difference between wattmeter and energy meter
17. 9.17 Digital multimeter
16. Chapter 10 Single-phase Transformers
1. 10.1 Introduction
2. 10.2 Transformer
3. 10.3 Working principle of a transformer
4. 10.4 Construction of a single-phase small rating transformer
5. 10.5 An ideal transformer
6. 10.6 Transformer on dc
7. 10.7 EMF equation
10. 10.10 Phasor diagram of a loaded transformer
11. 10.11 Transformer with winding resistance
12. 10.12 Mutual and leakage fluxes
13. 10.13 Equivalent reactance
14. 10.14 Actual transformer
15. 10.15 Simplified equivalent circuit
16. 10.16 Expression for no-load secondary voltage
17. 10.17 Voltage regulation
18. 10.18 Approximate expression for voltage regulation
19. 10.19 Losses in a transformer
20. 10.20 Efficiency of a transformer
21. 10.21 Condition for maximum efficiency
22. 10.22 All-day efficiency
23. 10.23 Transformer tests
24. 10.24 Autotransformers
25. 10.25 Autotransformer v/s potential divider
26. 10.26 Saving of copper in an autotransformer
27. 10.27 Advantages of autotransformer over two-winding transformer
29. 10.29 Applications of autotransformers
30. 10.30 Classification of transformers
31. 10.31 Power transformer and its auxiliaries
17. Chapter 11 DC Machines (Generators and Motors)
1. 11.1 Introduction
2. 11.2 Electromechanical energy conversion devices (motors and generators)
3. 11.3 Electric generator and motor
4. 11.4 Main constructional features
5. 11.5 Armature resistance
6. 11.6 Simple loop generator and function of commutator
7. 11.7 EMF equation
8. 11.8 Types of dc generators
9. 11.9 Separately excited dc generators
10. 11.10 Self-excited dc generators
11. 11.11 Voltage build-up in shunt generators
12. 11.12 Critical field resistance of a dc shunt generator
13. 11.13 Causes of failure to build-up voltage in a generator
14. 11.14 DC motor
15. 11.15 Working principle of dc motors
16. 11.16 Back emf
17. 11.17 Torque equation
18. 11.18 Shaft torque
19. 11.19 Comparison of generator and motor action
20. 11.20 Types of dc motors
21. 11.21 Characteristics of dc motors
22. 11.22 Characteristics of shunt motors
23. 11.23 Characteristics of series motors
24. 11.24 Characteristics of compound motors
25. 11.25 Applications and selection of dc motors
26. 11.26 Necessity of starter for a dc motor
27. 11.27 Starters for dc shunt and compound-wound motors
28. 11.28 Three-point shunt motor starter
29. 11.29 Losses in a dc machine
30. 11.30 Constant and variable losses
31. 11.31 Stray losses
32. 11.32 Power flow diagram
33. 11.33 Efficiency of a dc machine
18. Chapter 12 Three-Phase Induction Motors
19. Chapter 13 Single-Phase Induction Motors
1. 13.1 Introduction
2. 13.2 Nature of field produced in single-phase induction motors
3. 13.3 Torque produced by single-phase induction motor
4. 13.4 Types of motors
5. 13.5 Split-phase motors
6. 13.6 Capacitor motors
8. 13.8 Reluctance start motor
9. 13.9 Ac series motor or commutator motor
10. 13.10 Universal motor
11. 13.11 Speed control of single-phase induction motors (fan regulator)
20. Chapter 14 Three-Phase Synchronous Machines
21. Notes
22. Acknowledgements