## Classical theory of electricity and magnetism: a course of lectures |

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Page 66

Thus the work done which we are considering to be the field energy is If the

dielectric be linear isotropic, D = € E with e independent of E, then we caa

integrate the above

energy ...

Thus the work done which we are considering to be the field energy is If the

dielectric be linear isotropic, D = € E with e independent of E, then we caa

integrate the above

**expression**to obtain Hence we have the result that the fieldenergy ...

Page 67

The interaction-at-a-distance

never blows up unless two charges are coincident. The following analysis

clarifies the situation. Consider for simplicity two point charges. Starting with the

field ...

The interaction-at-a-distance

**expressions**, however, may have either sign andnever blows up unless two charges are coincident. The following analysis

clarifies the situation. Consider for simplicity two point charges. Starting with the

field ...

Page 236

CD where p is the momentum vector of the particle of charge e and the right hand

side, known as the Lorentz

due to the electric field E and magnetic field B, v being the velocity of the ...

CD where p is the momentum vector of the particle of charge e and the right hand

side, known as the Lorentz

**expression**for the force, gives the force on the particledue to the electric field E and magnetic field B, v being the velocity of the ...

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### Contents

The empirical basis of electrostatics | 1 |

Direct calculation of fields | 7 |

dipoles9 The Dirac 5function13 | 13 |

Copyright | |

23 other sections not shown

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### Common terms and phrases

acceleration angle angular axis boundary conditions calculate called centre charge density charge distribution charged particle coefficient coil components conducting conductor consider coordinates dielectric constant differential dipole direction distance divergence electric and magnetic electric field electromagnetic field electromotive force electron electrostatic energy flux equation 16 expression field due field point finite fluid formula Fourier frame frequency function given gives Hence incident infinite interaction isotropic Laplace's equation linear Lorentz transformation magnetic field magnitude Maxwell's equations medium molecule momentum motion number density obtain orthogonal oscillations permanent magnets perpendicular photon plane plasma point charge polarization potential due Poynting vector radiation field radiation reaction radius refractive index region relation result satisfied scalar shows sin2 solution special theory sphere at infinity spherical surface integral symmetry tensor term theorem theory of relativity transverse uniform vanishes vector potential velocity volume wave length write zero