Drakes Electrical Dictionary
Cód:
491_9781443732390
PREFACE: The prime object of DRAKES ELECTRICAL DICTION- ARY is to bring together for convenient reference the words, terms and phrases used in the electrical world. The tremendous growth in interest in the electrical arts, trades and sciences makes some method of quick reference a practical necessity. It is hoped that the manner of presentation followed in this book will prove to be most advantageous. Many practical difficulties arise in arranging all words and phrases alphabetically. The single words fall into place naturally enough, but in placing the phrases the question of which word of the phrase is to have the alphabetic position is important. The general plan of using the first words of all phrases has been adopted. Thus an endless number of annoying cross references have been avoided. In any field of science in which growth has been and natural that words continues to be so rapid, it is only and terms are not absolutely fixed. Without making the work too voluminous, however, we have endeavored to include all those words and terms in common use, though many are used interchangeably. Every effort has been made to produce a book of the greatest practical utility to every one who has any in- terest in the subject of electricity.. A A. C. An abbreviation expressing an alternating current. Absolute. Complete by itself. Independent of any other element. Absolute Unit of Current. A current possessing a de- gree of strength, and which when transmitted through a wire which has been curved in the shape of an arc of a circle of one centimetre radius, will act on a one-unit power magnetic pole, stationed at the center of the arc, with a force equal to one degree. A 10 amperes current. Absolute Unit of Electromotive Force. The electro- motive force unit C. G. S. Absolute Vacuum. A void produced by the exhaustion of all residual gases. Absorption. The act of one form of material substance sucking or drawing in some other form of matter. The sucking in of water by a sponge
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