Electromagnetics made easy

This book is intended to serve as an undergraduate textbook for a beginners course in engineering electromagnetics. The present book provides an easy and simplified understanding of the basic principles of electromagnetics. Abstract theory has been explained using real life examples making it easier for the reader to grasp the complicated concepts. An introductory chapter on vector calculus and the different coordinate systems equips the readers with the prerequisite knowledge to learn electromagnetics. The subsequent chapters can be grouped into four broad sections - electrostatics, magnetostatics, time varying fields, and applications of electromagnetics. Written in lucid terms, the text follows a sequential presentation of the topics, and discusses the relative merits and demerits of each method. Each chapter includes a number of examples which are solved rigorously along with pictorial representations. The book also contains about 400 figures and illustrations which help students visualize the underlying physical concepts. Several end-of-chapter problems are provided to test the key concepts and their applications. Thus the book offers a valuable resource for both students and instructors of electrical, electronics and communications engineering, and can also be useful as a supplementary text for undergraduate physics students.

2.17 Electric Field of a Uniformly Charged Spherical Shell

Intro -- Preface -- Contents -- About the Author -- 1 Vector Analysis -- 1.1 Introduction -- 1.2 Graphical Representation of Vectors -- 1.3 Symbolic Representation of Vectors -- 1.4 Vector Addition -- 1.5 Subtraction of Vectors -- 1.6 Multiplication of a Vector by a Scalar -- 1.7 Multiplication of Vectors: Dot Product of Two Vectors -- 1.8 Multiplication of Vectors-Cross-Product of Two Vectors -- 1.9 Vector Components and Unit Vectors -- 1.10 Triple Products -- 1.11 Line, Surface and Volume Integration -- 1.12 Flux -- 1.13 Vector Differentiation: Gradient of a Scalar Function

1.14 Vector Differentiation: Divergence of a Vector -- 1.15 Vector Differentiation: Curl of a Vector -- 1.16 Divergence Theorem -- 1.17 Stoke's Theorem -- 1.18 The Gradient Theorem -- 1.19 Others Coordinate Systems -- 1.19.1 Spherical Polar Coordinates -- 1.19.2 Cylindrical Coordinates -- 1.20 Important Vector Identities -- 1.21 Two and Three Dimensions -- Exercises -- 2 Electric Charges at Rest: Part I -- 2.1 Coulomb's Law -- 2.2 Electric Field Intensity -- 2.3 Electric Field Intensity Due to a Group of Discrete Point Charges -- 2.4 Continuous Charge Distributions

2.5 A Note about Coulomb's Law -- 2.6 Calc…