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About this book

This book aims at making readers develop a better understanding of electrostatic fields using the form of problems and puzzles (summarized as “questions” hereafter) and answers, instead of tedious explanations in ordinary textbooks. The book is filled with the questions with unexpected answers and questions often misunderstood or rarely completely understood, most of which are original. The questions in the book look simple and very easy to answer at a glance; nevertheless, once students try to solve them, they will find that the questions are really tough nuts to crack. Teachers can also use the questions in the book in their classes.
Not only from an academic or an educational point of view, the book is useful also to engineers working in such fields as electrical discharges and their applications, high voltage equipment in DC and AC circuits as well as electrostatic devices. This is because the book introduces various practical applications related to electrostatic fields.
The original ideas of the book are based on the following Japanese book written by one of author; T. Takuma: Panorama of Electric Fields (in Japanese) IEE, Japan, 2003. This English version of the book been thoroughly revised and improved with several new questions added.

Table of Contents

Frontmatter

Chapter 1. Introduction

Abstract
Electromagnetism is a major component of the physics education curricula of high schools, colleges, and universities. However, it is more difficult to understand than the other major component, mechanics. One reason for this difficulty is that the principal variables in electromagnetism, i.e., potentials and fields, cannot be seen directly nor experienced easily, whereas those in mechanics, such as displacement and velocity, can easily be seen and perceived.
Tadasu Takuma, Takatoshi Shindo

Chapter 2. Notes

Abstract
This chapter supplies some general notes on the scope of the book and the idealizations used. The first part explains the electrostatic and quasi-electrostatic fields that are the core subjects of the book. The second part exemplifies the simplified or idealized concepts and/or conditions relating to charge and the configurations and shapes of conductors and solid dielectrics.
Tadasu Takuma, Takatoshi Shindo

Chapter 3. Questions and Answers

Abstract
This chapter is the main part of the book, and contains the questions (problems and puzzles) and answers. They are organized into five sections and thirteen subjects. Five sections are as follows; 3.1: Mono-Dielectric Fields, 3.2: Mono-dielectric Fields, 3.3: Electric Charge, Space Charge, and Drifting Charge, 3.4: Composite Dielectrics, and 3.5: Other Topics. It contains 49 Questions (and Answers) in all. Most Answers contain additional items such as Detailed Explanations, Comments, and (related) Applications.
Tadasu Takuma, Takatoshi Shindo

Chapter 4. Three Simple Questions Not Related to Electric Fields

Abstract
As a thought-provoking pastime for readers, this chapter offers three simple questions in technology or physics. No answers to these questions are given in this book.
Tadasu Takuma, Takatoshi Shindo

Chapter 5. Fundamentals of Electrostatic and Quasi-electrostatic Fields

Abstract
This chapter explains the fundamental characteristics of the electrostatic and quasi-electrostatic fields that the book covers. It deals with basic equations, boundary conditions, and the effects of conduction, among others. The “uniqueness theorem” in electric fields is also explained.
Tadasu Takuma, Takatoshi Shindo

Chapter 6. Supplementary Explanations

Abstract
This chapter gives deeper or somewhat more detailed explanations than those provided in the individual answers in Chap. 3. It also explains a critical argument (and also its counterargument ) given on an answer in Chap. 3. This chapter contains 29 items in all.
Tadasu Takuma, Takatoshi Shindo

Backmatter

Additional information