Lynde, Carleton John, b. 1872 · New York, Macmillan · leaf 198
s.The parts marked i, 2, 3, and 4 aresegments of the commutator. B and Bare the brushes. The commutator andbrushes serve to change the direction ofthe current in the electromagnets of thearhiature. The direction of the currentis changed twice in each revolution.Let us now see how the electric… … FIG. 136. — Diagram of anelectric motor. 184 PHYSICS OF THE HOUSEHOLD with the fingers pointing in the direction in which the currentpasses around the magnet; the extended thumb then points tothe north pole of the magnet. The current from the dynamo D enters the motor at A, whereit divides. Part…
Physics · Home Economics
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