Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 711
adua, invented an electro dy-namic motor in which a permanent magnet was made to oscillatebetween the two poles of an electro magnet which changedpolarity at each oscillation ; and this oscillating movement waseasily transformed into a continuous movement of rotation. Fig. 690 THE EIxECTRICAL… … Fig. 458. able of oscillating between the two branches of an electro magnet,E, represented separately in the figure. A current, on being sentinto the electro magnet, passes through an eight cupped mercurial
Electrical engineering
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