Dynamo electric machinery; its design, construction, and operation; direct-current machines (1915)
Sheldon, Samuel, 1862-1920, Hausmann, Erich, 1886- joint author · New York, D. Van Nostrand Company; · leaf 62
50 DYNAMO ELECTRIC MACHINERY. E. M. F. therein will be the same as that in the first, butcorresponding instantaneous values in the two loops occur 90° apart, as shown inFig. 19. The resultingelectromotive force at anyinstant may be found byadding the E.M.F.s in-duced in the two loops atthat… … Fig. 19. sure for two loops situated 90° apart. The instantaneous value of the electromotive force in-duced in the first loop is E/ = E^ sin a, and that induced in the second is £/=£^sin (90° +a); therefore the resulting instantaneous value of voltage in-duced in the loops when connected in series…
Electric machinery
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