International Library of Technology · Scranton, International Textbook Co. · leaf 209
lems connected withalternating-current work. Average value = .636 maximum value. ~^rr . -1 »j^w . 1 maximum valueEffective value = .707 maximum value, or • — t^2Effective value = 1.11 averaoe value. 2582 THEORY OF ALTERNATING 3868. On account of the importance of the effectivevalue, the following… … Fig. 1454. sin^ a -f- cos° a ab , OFOa or sm a = 0 a ab sin^ a = OaOb cos a = 0 a Ob- cos a = Oa- ab + Ob 0 ~ 0 a 0 a a = 1. Oa Now as the line O a revolves, thus generating the sinecurve, the sine varies from 0 to 6^ <^ and the cosine variesfrom Oc [= Oa) to 0, so that the sine and cosine…
Electrical engineering
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