International Library of Technology · Scranton, International Textbook Co. · leaf 207
e d oi the same area as the surface a f b. The aver-age value taken for a whole cycle would be zero, because theaverage ordinate for the negative wave would be the equaland opposite of the positive ordinate. In the case of a sine 2580 THEORY OF ALTERNATING curve, this average value always bears a… … Fig. 1452. very extended. The relation between the average andmaximum value is, however, used considerably and shouldbe kept in mind. (3) The effective value. The effective value of analternating current may be defined as that value wJdcJi ivouldp7od2ice the same heatijig effect in a circuit as a…
Electrical engineering
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