Brechner, Claude H., 1887- [from old catalog] · Boston, New York [etc.] Allyn and Bacon · leaf 204
loops of wire (the arma-ture) turning in a mag-netic field (field), andthus an electric pressureis generated. This pres-sure is in the oppositedirection to the appliedpressure or E. M. F., andis hence called counter-E. M. F. or C. E. M. F.A motor, then, whenrunning, generates aC. E. M. F.… … Figure r — Photograph of a 3-pointStarting-box. 194 MOTION-PRODUCING EFFECT OF CURRENT Suppose the motor mentioned above generates 100 volts,C. E. M. F., when running at full speed, then = — = 20 amperes, the amount of current 2 2 the motor would take when running at full speed.
Physics
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