Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise .. (1916)
Swingle, Calvin F. (Calvin Franklin), b. 1846 · Chicago, F.J. Drake & company · leaf 1177
70.7 per cent of the maximum value ofthe amperes at the peak of the current wave. The amme-ter reading of effective current produces the same heatingeffect, gives out the same available energy as a direct cur-rent of the same amount. When there is no apparatus withan iron magnetic circuit connected… … Fig. 498voltage and current waves and complete the cycle in exact time relation with thevoltage. Fig. 498 shows both the voltage and the currentwaves, the zero line being divided into 360° as in Fig. 496.The full line represents the voltage wave, and the dottedline the current wave. In commercial…
