Electricity experimentally and practically applied; a book for the beginner and for the practical man, principles, experiments, practical applications and problems (1910)
Ashe, Sydney Whitmore · New York, D. Van Nostrand company · leaf 65
ELECTRO-MA GNETISM 43 … Fig. 74. —Tractive Magnet built by Cutler Hammer Clutch Co 44 EXPERIMENTAL ELECTRICITY with the drcuit when used. The movable coil, or potentialcoil, has a high resistance and is connected through two spi-ral springs to two other binding posts, which are placed inmultiple with the consuming device…
Electricity · Electrical engineering
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