International Library of Technology · Scranton, International Textbook Co. · leaf 195
her.They will come to their maximum values at the sameinstant and will pass through zero simultaneously. Whentwo or more alternating E. M. F.s or currents varytogether in this way, they are said to be in pbase with eachother. The two curves shown in Fig. 1439 not only repre-sent two synchronous E.… … Fig. 1439. thus giving the sine curve shown by the full line. Forexample, take any instant represented by the point/on theline O x; the ordinate, or vertical, f g represents theinstantaneous value of the, E. M. F. E, and the ordinate/ Ji represents the instantaneous value of E. The value oftheir…
Electrical engineering
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