International Library of Technology · Scranton, International Textbook Co. · leaf 247
the current and E. M. F. It isseen at once, then, that the phase relation between the cur-rent and E. M. F. will have an important bearing upon thepower supplied, because the value of the E. M. F. corre-sponding to any particular value of the current will dependaltogether upon their phase relation.… … Fig. 1487. between current and E. M. F. upon the power expendedcan be well illustrated by means of the sine curves as shownin Figs. 1487 to 1490 inclusive. Suppose an E. M. F. ofmaximum value E is in phase with a current of maximumvalue C, as shown in Fig. 1487, the current being representedby the…
Electrical engineering
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