International Library of Technology · Scranton, International Textbook Co. · leaf 191
delivering a current which passed throughexactly the same number of cycles per second. SINE CURVES.3846. The variation of an alternating current as timeelapses may always be represented by a wave-like curve suchas those shown in the previous diagrams, such curves beingeasily obtained from the… … Fig. 1438. law according to which this curve varies. In the case ofthe irregular curves shown in Figs. 1434, 1435, and 1436, CURRENT APPARATUS. 2565 the law giving the relation between the time and the value ofthe current is so complicated that it renders calculations tooinvolved. A great many…
Electrical engineering
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