Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 229
ample, the case of a single coilrevolved in a bipolar field, as considered in § 257. Thecommutator consists of twosemi-circular plates, (Figs.268 and 269), and thebrushes are so placed thatthey rest upon the insulat-ing material between theplates at the instant thecurrent is changing direc-tion in… … Fig. 268, Arrangements for transforming the alternatingcurrent in the armature into a direct-currentin the external circuit. 222 INDUCED CURRENTS-DYNAMO AND MOTOR
Physics
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