## Classical Electrodynamics |

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Page 369

In Galilean relativity

under Galilean transformations the infinitesimal elements of distance and time

are separately invariant . Thus ds2 = dx2 + dyż + dz2 = ds2 ( 11 . 59 ) dt ?

In Galilean relativity

**space**and time coordinates are unconnected . Consequentlyunder Galilean transformations the infinitesimal elements of distance and time

are separately invariant . Thus ds2 = dx2 + dyż + dz2 = ds2 ( 11 . 59 ) dt ?

Page 370

63 ) 12 – 11 = J , T _ • * T ? where t , and t , are the corresponding times in K .

Another fruitful concept in special relativity is the idea of the light cone and "

11 .

63 ) 12 – 11 = J , T _ • * T ? where t , and t , are the corresponding times in K .

Another fruitful concept in special relativity is the idea of the light cone and "

**space**- like ” and “ time - like " separations between two events . Consider Fig .11 .

Page 384

128 ) is evidently the

the meaning of the fourth component of the force - density 4 - vector we write out

fo ...

128 ) is evidently the

**space**components of a 4 - vector . Hence f must be the**space**part of a 4 - vector fu = ( 1 , 1 - 2 ) , where : fu = - Fundo ( 11 . 129 ) To seethe meaning of the fourth component of the force - density 4 - vector we write out

fo ...

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### Contents

Introduction to Electrostatics | 1 |

References and suggested reading | 23 |

Wave Guides and Resonant Cavities | 235 |

Copyright | |

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