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This book is derived from modules forming a full course in electricity and magnetism (E&M) as given by the authors. Thoroughly class tested over many years and incorporating numerous worked examples and problems, the book presents the first part of such a course and is focussed on electrostatics. The book starts with the definition of the electrisation state, describing both the electrisation state of charged and polarized bodies, respectively. After introducing the electrostatic field as a physical field having as its source the stationary electric charge, physical quantities characterizing the field are introduced (i.e., intensity and potential of the electrostatic field), demonstrating that the electric field is a potential vector field and an irrotational field with open field lines. Subsequently, the authors explore methods to compute electrostatic field and potential in vacuum for different discrete or continuous distribution of charges (i.e., superposition method, method based on Gauss' law for electric field, methods based on Poisson and Laplace's equations solving, etc.). The second part of the book discusses how the electric field develops in conductors to electrostatic equilibrium and the behaviour of the electric field in insulating materials, especially in dielectrics. The latter discussions open the perspectives to understand the physical processes taking place in dielectric materials going from the phenomenological study of dielectrics to the microscopic approach of the polarization state of dielectrics.
This book is suitable for students taking a general E&M course or those undertaking a more specialised course in electrostatics. The advanced math support required to follow the scientific content of the book is provided through appendixes, and theoretical concepts are consistently blended with examples of real-life applications.
¿tefan Antohe graduated in 1977 within Faculty of Physics, University of Bucharest, Romania and he finished in 1994 a Ph.D. program in Physics at the same institution. He is currently Professor Emeritus of the University of Bucharest, Head of the Research and Development Center for Materials and Electronic & Optoelectronic Devices (MDEO) of the Faculty of Physics, as well as Full Member of the Academy of Romanian Scientists (AOSR). His main research activities are dedicated to the physics of organic and inorganic semiconducting thin films and nanomaterials, with special emphasis onto investigation of charge transport mechanisms within materials and interfaces. He possesses also great knowledge on the fabrication technologies and characterization of various electronic and optoelectronic devices, especially photovoltaic cells and transparent field-effect transistors. He co-authored more than 250 scientific publications in ISI journals, he supervised several Ph.D. and post-doctoral fellows, and he coordinated numerous research projects.
Vlad-Andrei Antohe received in 2002 a bachelor's degree (B.Sc.) in Physics Education and in 2005 a Master diploma (M.Sc.) in Physical Electronics, from Faculty of Physics, University of Bucharest, Romania. He also obtained in 2003 an Engineering degree (M.Eng.) in Electronics from Faculty of Electronics and Telecommunications, Polytechnic University of Bucharest, Romania. Then, he finished in 2012 a Ph.D. program in Applied Engineering Sciences, the diploma being awarded by Catholic University of Louvain, Belgium, where he continued his post-Doctoral studies until 2016. Since then, he is Associate Professor of University of Bucharest and Scientific Collaborator of Catholic University of Louvain. Besides teaching activities with undergraduate and graduate students, his main research interests are in the areas of materials science and nanotechnology, with particular focus on the development and investigation of nanostructured materials and low-dimensional architectures, with the aim of generating novel structural arrangements tailored to specific desired properties. He has also expertise in the fabrication and characterization of electronic and optoelectronic devices based on inorganic, organic, or hybrid organic/inorganic nanostructured materials, such as photovoltaic cells, sensors and biosensors, magnetic media for various applications, as well as micro-batteries, micro-supercapacitors and other electrochemical systems. He co-authored around 60 scientific publications, of which more than 15 ISI research papers are published in journals with high impact factor ranging approximately from 5 to 32.
Preface
Acknowledgments
Author biographies
Introduction
1 Electrostatic field in vacuum
2 The electrostatic potential
3 Flux of the electrostatic field
4 Particular systems of charges
5 Conductors within electrostatic fields
6 Capacitance and capacitors
7 Dielectric materials
8 Microscopic approach on the polarization of dielectrics
9 Energy in the presence of dielectrics
Appendix A: Three-orthogonal curvilinear coordinate systems A-1
Appendix B: Elements of vector analysis B-1
Appendix C: Universal physical constants
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