Lessons in practical electricity; principles, experiments, and arithmetical problems, an elementary text-book (1903)
Swoope, Coates Walton. [from old catalog] · New York, D. Van Nostrand company · leaf 360
10, but the current graduallyrises to its maximum value of 5 amperes, P to A, and asgradually diminishes again to zero, A to B, during the firstsecond, which may also represent one-half revolution of theloop. Corresponding with the second half revolution, the current graduallyrises from B,… … Fig. 312.—Graphical Representation of an Alter-nating Current. alternating current wave is not so abrupt as that depicted inFig. 311, but more truly represented by the undulatory curve,Fig. 312, which represents the same variations as before.Thus at the end of one-half second the current reaches…
Electricity · Magnetism
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