The electric motor and the transmission of power (1906)
Houston, Edwin J. (Edwin James), 1847-1914, Kennelly, Arthur E. (Arthur Edwin), 1861-1939, joint author · New York : McGraw Pub. Co. · leaf 109
pens that the direction of theE. M. F. which is developed in such amachine, or indeed, in any motor, whenrotated by electromagnetic forces suppliedby a current, is opposed or counter to thedirection of the drivino; current. If, tlierefore, instead of rotating thewheel shown in Fig. 16, it be left… … Fig. 16.—Jacobis Electric Motor. rotation of the wheel will be produced inthe opposite direction to that representedby the arrow. 102 THE ELECTRIC MOTOR AND Without atteinptiug to trace fully thegradual developments of the electricmotor, it suffices to say that one of theearliest practical motors…
Electric motors
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