Introduction to Electrostatic Fields
Coulomb’s Law
Force in Terms of Rectangular Coordinates
Force Due to N Number of Charges
Electric Field Intensity (E)
Charge Distributions
Electric Field Intensity Due to Charge Distributions
Electric Field Due to Infinite Line Charge
Electric Field Due to Finite Line Charge
Electric Field Strength Due to a Circular Ring of Charge
Electric Field Strength Due to an Infinite Sheet of Charge
Electric Field Strength Due to a Sheet of Circular Disc
Electric Field Strength at the Centre of a Half Circular Ring
Electric Flux and Flux Density
Electric Flux Density Due to Point Charge Q
Electric Flux Density Due to Charge Distributions
Gauss’ Law (Integral Form)
Gauss’ Law in Point Form (Maxwell’s First Law)
Divergence of Electric Flux Density
Divergence Theorem of Electric Flux Density
Electric Flux Density Due to Infinite Line Charge Using Gauss’ Law
Flux Density Due to an Infinite Sheet Charge Using Gauss’ Law
Flux Density for a Coaxial Cable
Flux Density for a Spherical Shell of Charge
Flux Density for a Uniformly Charged Sphere
Work Done in Moving a Point Charge in an Electrostatic Field
Electric Potential
Potential Due to Point Charge
Potential Due to N Point Charges
Potential Due to Charge Distribution
Potential Difference Due to an Infinite Line Charge
Potential Due to a Line Charge of Finite Length Potential Due to a Circular Ring
Potential Gradient
Relationship between E and V: Maxwell’s Second Equation
Potential Function (V)
Equipotential Surfaces
Additional Problems
Questions
Problems
Answers Multiple-Choice Questions
Answers

Introduction
Conductors
Behaviour of Conductors in an Electric Field
Electric Dipole
Potential Due to Electric Dipole
Dipole Moment
Electric Field Due to Dipole
Torque on an Electric Dipole in an Electric Field
Torque on a Dipole Due to the Field of Another Dipole
Poisson’s and Laplace’s Equations
Uniqueness Theorem
Electric Field between Two Concentric Conducting Spheres Using Laplace’s Equation
Electric Field of a Coaxial Cable Using Laplace’s Equation
Electric Field Due to Semi Infinite Conducting Planes
Electric Field Due to Two Axial Conducting Cones
Additional Problems
Questions 
Problems 
Answers 
Multiple-Choice Questions
Answers

Dielectric Materials 
Polarization 
Electric Displacement Vector in Dielectrics  
Boundary Conditions 
Capacitance 
Capacitance between Two Concentric Spheres 
Capacitance of a Coaxial Cable 
Capacitance of Two Parallel Wires (Single-Phase Transmission Line) 
Energy Stored in an Electrostatic Field 
Energy Stored in Terms of E and D
Energy Stored in a Capacitor 
Energy Stored in a Coaxial Cable 
Electric Current and Current Density 
Current Density
Conductors and Conductivity
Point Form of Ohm’s Law (Relationship between J and E
Relationship between J and  rv
Continuity Equation 
Relaxation time (Tr ) 
Resistance and Power 
Additional Problems 
Questions 
Problems 
Answers 
Multiple-Choice Questions 
Answers 

Introduction 
Density 
Additional Problems 
Questions 
Problems 
Answers 

Multiple-Choice Questions 
Answers 

Introduction 
Ampere’s Circuital Law or Ampere’s Work Law 
Magnetic Field Intensity Due to a Solid Conductor 
Magnetic Field Intensity Due to Coaxial Cable 
Magnetic Field Intensity Due to an Infinite Sheet of Current 
Magnetic Field Intensity at Any Point in between Two
Infinite Parallel Surface Current Sheets 
Differential or Point Form of Ampere’s Circuital Law  (Maxwell’s Third Equation) 
Stokes’ Theorem 
Point Form of Magnetic Flux Density 
Magnetic Field Intensity Due to a Solenoid Using Ampere’s Circuital Law 
Magnetic Field Intensity Due to a Toroid Using Ampere’s Circuital Law 
Additional Problems 
Questions 
Problems 
Answers 
Multiple-Choice Questions 
Answers 

Introduction 
Force and Torque on a Moving Charge 
Force on a Differential Current Element 
Ampere’s Force Law: Force Between Two Current Elements 
Force between Two Straight Infinitely Long Parallel Conductors 
Magnetic Torque Due to Rectangular Loop in a Magnetic Field 
Magnetic Dipole and Dipole Moment 
Boundary Conditions for Magnetic Field 
Additional Problems 
Questions 
Problems 
Answers 
Multiple-Choice Questions 
Answers 

Introduction 
Scalar Magnetic Potential ( Vm ) 
Magnetic Potential at the Centre of a Square Loop 
Vector Magnetic Potential ( A)
The Vector Magnetic Potential for Line Current Element 
Poisson’s Equation for Vector Magnetic Potential 
Properties of Vector Magnetic Potential 
Vector Magnetic Potential in the Field Due to Infinite Length Conductor 
Vector Magnetic Potential Due to a Straight Line of Finite Length 
Inductor and Inductance 
Inductance of a Solenoid 
Inductance of a Toroid 
Inductance of a Coaxial Cable 
Inductance of a Two-Wire Transmission Line 
Mutual Inductance 
Neumann’s Formula for Mutual Inductance 
Mutual Inductance between Two Solenoids 
Magnetic Energy 
Energy Density Stored in the Magnetic Field 
Energy Stored Due to Mutual Inductance 
Magnetic Circuits 
Magnetic Materials 
Characteristics of Magnetic Materials 
Additional Problems 
Questions 
Problems 
Answers 
Multiple-Choice Questions 
Answers 

Introduction 
Faraday’s Law 
Induced EMF in an AC Generator 
Induced EMF in a Coil 
Faraday’s Disc Generator 
Equation of Continuity for Time-Varying Fields 
Modified Ampere’s Circuital Law for Time-Varying Fields 
Displacement Current 
Ratio between Conduction Current Density and Displacement Current Density 
Differences between Conduction, Convection and Displacement Currents 
Differences between Displacement Current Density and Conduction Current Density 
Maxwell’s Equations for Static Fields 
Maxwell’s Equation for Sinusoidal (Harmonic) Time-Varying Fields 
Boundary Conditions 
Poynting Theorem 
Additional Problems 
Questions 
Problems 
Answers 
Multiple-Choice Questions 
Answers 

 Definitions 
 Distance Vector 
 Vector Addition 
Vector Multiplication 
 Dot Product 
 Cross Product 
Scalar Triple Product 
 Vector Triple Product 
 The Cartesian or Rectangular Coordinate System 
 Circular Cylindrical Coordinate System 
 Spherical Coordinate System 
 Differential Elements 
 Transformation of Vectors 
 Gradient, Divergence and Curl of a Vector 
 Vector Identities 
 Del Operators