Principles and practice of electrical engineering (1914)
Gray, Alexander, 1882-1921 · New York [etc.] McGraw-Hill Book Company, inc. · leaf 217
. In dia- 191 192 PRINCIPLES OF ELECTRICAL ENGINEERING [Chap, xxvii gram D the e.m.fs. in the conductors are in such a direction as toforce the current from gto f through the external circuit, thereforeg is now the positive and / the negative terminal. The current Inthe external circuit connecting… … Fig. 210.—Two-pole revolving-field alternator. Alternators are generally made with stationary conductorsand a revolving field, as shown diagrammatically in Fig. 210.The direction of the e.m.f. in each conductor, shown at differentinstants in diagrams A, B, C and D, may be found by the right-hand…
Electrical engineering
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