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經(jīng)典電動力學(xué) （影印版）（第3版） 
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《經(jīng)典電動力學(xué)（影印版）（第3版）》是一本有著很高知名度的電動力學(xué)教材，長期以來被世界上多所大學(xué)選用。本影印版是2001年出版的第三版。與前兩版相比，第三版在保留基本經(jīng)典電動力學(xué)內(nèi)容的基礎(chǔ)上，做了不少調(diào)整。如增加了一些關(guān)于數(shù)字計算方面的內(nèi)容；刪除了等離子體一章，將其部分內(nèi)容在其它章節(jié)體現(xiàn)；增加了一些新的科技發(fā)展內(nèi)容，如光纖、半導(dǎo)體波導(dǎo)管、同步輻射等。
全書共分16章，可作為物理類專業(yè)電動力學(xué)課程的教材，尤其適合開展雙語教學(xué)的學(xué)校，對于有志出國深造的人員也是一本必不可少的參考書。
It has been 36 years since the appearance of the first edition of this book, and 23 years since the second. Such intervals may be appropriate for a subject whose fundamental basis was completely established theoretically 134 years ago by Maxwell and experimentally 110 years ago by Hertz. Still, there are changes in emphasis and applications. This third edition attempts to address both without
any significant increase in size. Inevitably, some topics present in the second edition had to be eliminated to make room for new material. One major omission is the chapter on plasma physics, although some pieces appear elsewhere. Readers who miss particular topics may, I hope, be able to avail themselves of the second edition. The most visible change is the use of SI units in the first 10 chapters. Gaussian units are retained in the later chapters, since such units seem more suited to relativity and relativistic electrodynamics than SI. As a reminder of the sys- tem of units being employed, the running head on each left-hand page carries \"——SI\" or \"——G\" depending on the chapter. My tardy adoption of the universally accepted SI system is a recognition that almost all undergraduate physics texts, as well as engineering books at all levels, employ SI units throughout. For many years Ed Purcell and I had a pact to support each other in the use of Gaussian units. Now I have betrayed him! Al- though this book is formally dedicated to the memory of my father, I dedicate this third edition informally to the memory of Edward Mills Purcell (1912-1997), a marvelous physicist with deep understanding, a great teacher, and a wonderful man.
Introduction and Survey 1
I.1 Maxwell Equations in Vacuum, Fields, and Sources 2 I.2 Inverse Square Law, or the Mass of the Photon 5 I.3 Linear Superposition 9 I.4 Maxwell Equations in Macroscopic Media 13 I.5 Boundary Conditions at Interfaces Between Different Media 16 I.6 Some Remarks on Idealizations in Electromagnetism 19 References and Suggested Reading 22 Chapter 1 / Introduction to Electrostatics 24 1.1 Coulombs Law 24 1.2 Electric Field 24 1.3 Gausss Law 27 1.4 Differential Form of Gausss Law 28 1.5 Another Equation of Electrostatics and the Scalar Potential 29 1.6 Surface Distributions of Charges and Dipoles and Discontinuities in the Electric Field and Potential 31 1.7 Poisson and Laplace Equations 34 1.8 Greens Theorem 35 1.9 Uniqueness of the Solution with Dirichlet or Neumann Boundary Conditions 37 1.10 Formal Solution of Electrostatic Boundary-Value Problem with Green Function 38 1.11 Electrostatic Potential Energy and Energy Density; Capacitance 40 1.12 Variational Approach to the Solution of the Laplace and Poisson Equations 43 1.13 Relaxation Method for Two-Dimensional Electrostatic Problems 47 References and Suggested Reading 50 Problems 50 Chapter 2 / Boundary- Value Problems in Electrostatics: I 57 2.1 Method of Images 57 2.2 Point Charge in the Presence of a Grounded Conducting Sphere 58 2.3 Point Charge in the Presence of a Charged, Insulated, Conducting Sphere 60 2.4 Point Charge Near a Conducting Sphere at Fixed Potential 61 2.5 Conducting Sphere in a Uniform Electric Field by Method of Images 62 2.6 Green Function for the Sphere; General Solution for the Potential 64 2.7 Conducting Sphere with Hemispheres at-Different Potentials 65 2.8 Orthogonal Functions and Expansions 67 2.9 Separation of Variables; Laplace Equation in Rectangular Coordinates 70 2.10 A Two-Dimensional Potential Problem; Summation of Fourier Series 72 2.11 Fields and Charge Densities in Two-Dimensional Corners and Along Edges 75 2.12 Introduction to Finite Element Analysis for Electrostatics 79 References and Suggested Reading 84 Problems 85 Chapter 3/Boundary- Value Problems in Electrostatics: H 95 3.1 Laplace Equation in Spherical Coordinates 95 3.2 Legendre Equation and Legendre Polynomials 96 3.3 Boundary-Value Problems with Azimuthal Symmetry 101 3.4 Behavior of Fields in a Conical Hole or Near a Sharp Point 104 3.5 Associated Legendre Functions and the Spherical Harmonics Ylm(θ,φ) 107 3.6 Addition Theorem for Spherical Harmonics 110 3.7 Laplace Equation in Cylindrical Coordinates; Bessel Functions 111 3.8 Boundary-Value Problems in Cylindrical Coordinates 117 3.9 Expansion of Green Functions in Spherical Coordinates 119 3.10 Solution of Potential Problems with the Spherical Green Function Expansion 112 3.11 Expansion of Green Functions in Cylindrical Coordinates 125 3.12 Eigenfunction Expansions for Green Functions 127 3.13 Mixed Boundary Conditions, Conducting Plane with a Circular Hole 129 References and Suggested Reading 135 Problems 135 Chapter 4/ Multipoles, Electrostatics of Macroscopic Media,Dielectrics 145 4.1 Multipole Expansion 145 4.2 Multipole Expansion of the Energy of a Charge Distribution in an External Field 150 4.3 Elementary Treatment of Electrostatics with Ponderable Media 151 4.4 Boundary-Value Problems with Dielectrics 154 4.5 Molecular Polarizability and Electric Susceptibility 159 4.6 Models for Electric Polarizability 162 4.7 Electrostatic Energy in Dielectric Media 165 References and Suggested Reading 169 Problems 169 Chapter 5/Magnetostatics, Faradays Law, Quasi-Static Fields 174 5.1 Introduction and Definitions 174 5.2 Blot and Savart Law 175 5.3 Differential Equations of Magnetostatics and Amperes Law 178 5.4 Vector Potential 180 5.5 Vector Potential and Magnetic Induction for a Circular Current Loop 181 5.6 Magnetic Fields of a Localized Current Distribution, Magnetic Moment 184 5.7 Force and Torque on and Energy of a Localized Current Distribution in an External Magnetic Induction 188 5.8 Macroscopic Equations, Boundary Conditions on B and H 191 5.9 Methods of Solving Boundary-Value Problems in Magnetostatics 194 5.10 Uniformly Magnetized Sphere 198 5.11 Magnetized Sphere in an External Field; Permanent Magnets 199 5.12 Magnetic Shielding, Spherical Shell of Permeable Material in a Uniform Field 201 5.13 Effect of a Circular Hole in a Perfectly Conducting Plane with an Asymptotically Uniform Tangential Magnetic Field on One Side 203 5.14 Numerical Methods for Two-Dimensional Magnetic Fields 206 5.15 Faradays Law of Induction 208 5.16 Energy in the Magnetic Field 212 5.17 Energy and Self-and Mutual Inductances 215 5.18 Quasi-Static Magnetic Fields in Conductors; Eddy Currents; Magnetic Diffusion 218 References and Suggested Reading 223 Problems 225 Chapter 6 / Maxwell Equations, Macroscopic Electromagnetism, Conservation Laws 237 6.1 Maxwells Displacement Current; Maxwell Equations 237 6.2 Vector and Scalar Potentials 239 6.3 Gauge Transformations, Lorenz Gauge, Coulomb Gauge 240 6.4 Green Functions for the Wave Equation 243 6.5 Retarded Solutions for the Fields: Jefimenkos Generalizations of the Coulomb and Biot-Savart Laws; Heaviside-Feynman Expressions for Fields of Point Charge 246 6.6 Derivation of the Equations of Macroscopic Electromagnetism 248 6.7 Poyntings Theorem and Conservation of Energy and Momentum for a System of Charged Particles and Electromagnetic Fields 258 6.8 Poyntings Theorem in Linear Dissipative Media with Losses 262 6.9 Poyntings Theorem for Harmonic Fields; Field Definitions of Impedance and Admittance 264 6.10 Transformation Properties of Electromagnetic Fields and Sources Under Rotations, Spatial Reflections, and Time Reversal 267 6.11 On the Question of Magnetic Monopoles 273 6.12 Discussion of the Dirac Quantization Condition 275 6.13 Polarization Potentials (Hertz Vectors) 280 References and Suggested Reading 282 Problems 283 Chapter 7 / Plane Electromagnetic Waves and Wave Propagation 295 7.1 Plane Waves in a Nonconducting Medium 295 7.2 Linear and Circular Polarization; Stokes Parameters 299 7.3 Reflection and Refraction of Electromagnetic Waves at a Plane Interface Between Two Dielectrics 302 7.4 Polarization by Reflection, Total Internal Reflection; Goos-Hanchen Effect 306 7.5 Frequency Dispersion Characteristics of Dielectrics, Conductors, and Plasmas 309 7.6 Simplified Model of Propagation in the Ionosphere and Magnetosphere 316 7.7 Magnetohydrodynamic Waves 319 7.8 Superposition of ,Waves in One Dimension; Group Velocity 322 7.9 Illustration of the Spreading of a Pulse As It Propagates in a Dispersive Medium 326 7.10 Causality in the Connection Between D and E; Kramers-Kronig Relations 330 7.11 Arrival of a Signal After Propagation Through a Dispersive Medium 335 References and Suggested Reading 339 Problems 340 Chapter 8 / Waveguides, Resonant Cavities, and Optical Fibers 352 8.1 Fields at the Surface of and Within a Conductor 352 8.2 Cylindrical Cavities and Waveguides 356 8.3 Waveguides 359 8.4 Modes in a Rectangular Waveguide 361 8.5 Energy Flow and Attenuation in Waveguides 363 8.6 Perturbation of Boundary Conditions 366 8.7 Resonant Cavities 368 8.8 Power Losses in a Cavity; Q of a Cavity 371 8.9 Earth and Ionosphere as a Resonant Cavity: Schumann Resonances 374 8.10 Multimode Propagation in Optical Fibers 378 8.11 Modes in Dielectric Waveguides 385 8.12 Expansion in Normal Modes; Fields Generated by a Localized Source in a Hollow Metallic Guide 389 References and Suggested Reading 395 Problems 396 Chapter 9/Radiating Systems, Multipole Fields and Radiation 407 9.1 Fields and Radiation of a Localized Oscillating Source 407 9.2 Electric Dipole Fields and Radiation 410 9.3 Magnetic Dipole and Electric Quadrupole Fields 413 9.4 Center-Fed Linear Antenna 416 9.5 Multipole Expansion for Localized Source or Aperture in Waveguide 419 …… Chapter 10 / Scattering and Diffraction 456 Chapter 11/Special Theory of Relativity 514 Chapter 12/Dynamics of Relativistic Particles and Electromagnetic Fields 579 Chapter 13/Collisions, Energy Loss, and Scattering of Charged Particles,Cherenkov and Transition Radiation 624 Chapter 14/Radiation by Moving Charges 661 Chapter 15 / Bremsstrahlung, Method of Virtual Quanta,Radiative Beta Processes 708 Chapter 16 / Radiation Damping, Classical Models of Charged Particles 745 Appendix on Units and Dimensions 775 1 Units and Dimensions, Basic Units and Derived Units 775 2 Electromagnetic Units and Equations 777 3 Various Systems of Electromagnetic Units 779 4 Conversion of Equations and Amounts Between SI Units and Gaussian Units 782 Bibliography 785 Index 791
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