# Difference between revisions of "Lorentz's Galilean-Invariant Form of Maxwell's Equations in Free Space"

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## Latest revision as of 18:41, 1 January 2017

Scientific Paper | |
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Title | Lorentz\'s Galilean-Invariant Form of Maxwell\'s Equations in Free Space |

Author(s) | David M Drury |

Keywords | Lorentz's version of Maxwell's equations, Galilean-invarient interaction, charged particle |

Published | 1992 |

Journal | Galilean Electrodynamics |

Volume | 3 |

Number | 3 |

Pages | 50-55 |

## Abstract

A Galilean-invarient interaction Lagrangian of a charged particle moving in an electromagnetic field in free space is obtained assuming that a natural (i.e., preferred) reference frame exists for the field and that all uniformly moving observers can determine their velocities with respect to this frame. From this Lagrangian, a Lorentz force law is derived. From this Lorentz force law, Poisson's equation, and the principle of conservation of electric charge, Lorentz's version of Maxwell's equations in free space for an observer moving uniformly through the ether is obtained. These modified Maxwell's equations, the field quantities they contain, and the wave equations derivable from them are shown to be Galilean invariant. They predict experimentally-obtained electromagnetic forces on charged particles in free space if the natural frame (i.e., ether) is entrained by the earth.