Brechner, Claude H., 1887- [from old catalog] · Boston, New York [etc.] Allyn and Bacon · leaf 208
Figure 204. — A Small Electric MotorUsed to Drive a Sewing Machine. SHUNT MOTOR 197 … Figure 205. An Electrical Motor Designed to Run aWashing Machine. The speed is regulated by putting a resistance into thefield circuit. Putting in resist-ance makes the motor speed up.Taking out resistance makes itslow down. It may seem unrea-sonable at first that putting inresistance in series…
Physics
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