Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 637
ach end of the wire wound around the fieldmagnet. The current which passes through the field circuit isconsequently never reversed, and the polarity of each pole ofthe field magnet remains constantly the same. As this fieldmagnet revolves it acts upon the ring in the same manner as ifthe ring… … THOMSON S SPHERICAL MACHINE. 617 current is in a given direction, and then through another phase,during which the current is in the other direction. Each sectionis cutting lines of force of one polarity during one-half of therevolution, and of the opposite polarity during the other half.The…
Electrical engineering
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