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

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Page 69

The transformations that we have considered are called

transformations and equation (2) may be taken as me definition of an

transformation. A vector is said to be represented by the coordinates of a point so

that it will ...

The transformations that we have considered are called

**orthogonal**transformations and equation (2) may be taken as me definition of an

**orthogonal**transformation. A vector is said to be represented by the coordinates of a point so

that it will ...

Page 177

Note that the Poynting vector falls off as l//-2and hence its integral over the

sphere at infinity does not vanish. Note also that the Poynting vector at a point is

non-vanishing only if the source current has a component

Problem 1.

Note that the Poynting vector falls off as l//-2and hence its integral over the

sphere at infinity does not vanish. Note also that the Poynting vector at a point is

non-vanishing only if the source current has a component

**orthogonal**to r.Problem 1.

Page 309

In case the electric and magnetic fields are

, one may reduce the field to a simple electric or magnetic field by a Lorentz

transformation. Thus suppose E^H2 and take the >-and z-dircctions along E and

H ...

In case the electric and magnetic fields are

**orthogonal**in one frame so that EH =0, one may reduce the field to a simple electric or magnetic field by a Lorentz

transformation. Thus suppose E^H2 and take the >-and z-dircctions along E and

H ...

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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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