## Electromagnetism for Engineers: An Introductory CourseThis is a fully revised and updated edition of a widely used introductory textbook on electromagnetism. It covers all the fundamental aspects of this important topic in electrical engineering. The approach is eminently practical and requires little mathematics other than elementary differentiation, integration, and trigonometry. It will continue to appeal to students studying this conceptually challenging but fundamental subject. New sections on electromechanics (conversion of electric and magnetic energy in mechanical energy and vice versa) and high-frequency phenomena (transmission lines, waveguides, optical fibres, and radio propagation) enhance the usefulness of the book. |

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### Contents

Electric charges at rest I | 8 |

Steady electric currents | 57 |

The magnetic field of steady electric currents | 74 |

Copyright | |

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### Common terms and phrases

air gap alternating current ampere applied axis calculate capacitance capacitor charge Q circuital law coil component conducting conductor Consider constant coulomb current density current element current flow current loop defined diameter dielectric dipoles direction discussed distance electric and magnetic electric charges electric current electric field strength electric flux electrical energy electrical engineering electromagnetic wave electromotive force electrons electrostatic field equal equation equipotentials Faraday's law flux density flux linkage frequency Gauss's theorem given Hence hysteresis illustrated in Fig insulating inverse square law iron loss machine magnetic energy magnetic field strength magnetic flux magnetomotive force magnitude material mechanical metal motion moving Ohm's law permanent magnets permeability permittivity perpendicular plane plates point charge polarity position potential difference potential energy propagation radius resistance rotating rotor Section shown in Fig shows solenoid space stator surface charge synchronous torque transmission line tubes of flux unit velocity voltage waveguide winding