Insulation and Design of Electrical Windings (Classic Reprint) - Couverture souple

Fleming, Arthur Percy Morris

Couverture souple

ISBN 10 : 1330221257 ISBN 13 : 9781330221259

Editeur : Forgotten Books, 2019

A propos du livre

Présentation de l'éditeur

I ntrodactioiL In considering the physical characteristics of insulating materials it is important to appreciate that all matter to some extent possesses the property of electrical conductivity, and that in this respect the difference between conductors and insulators is not so much one of kind as of degree. The exhaustive investigations of Sir J. J. Thompson and others show that the conductivity (gases is explained by the presence and motion of infinitely small electrically charged particles termed ions which may be considered to consist of atoms or groups of atoms, or of very much smaller negatively charged particles known as electrons. Largely as a result of these investigations the electron theory has been developed, which has served to throw much light on the electrical behaviour of matter. In applying this theory to the study of electrical conductivity it is assumed that every atom has associated with it one or more detachable electrons whose aggregate negative charge is balanced by an equivalent positive charge on the atom, and that an ion possessing a definite positive or negative charge is formed by the addition of an electron to, or its removal from, one of these neutral atoms or combinations of atoms. If the cohesion between atoms and their electrons is overcome, the ions thus formed are free to move under the influence of an electric force, and when in motion in a definite direction constitute what is ordinarily termed an electric current, the magnitude of which is determined by the number of the ions and the velocity with which they move.
(Typographical errors above are due to OCR software and don't occur in the book.)

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Détails de l'édition

• Éditeur: Forgotten Books
• Date d'édition: 2019
• Langue: anglais
• ISBN 10: 1330221257
• ISBN 13: 9781330221259
• Reliure: Broché
• Nombre de pages: 238
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