Lessons in practical electricity; principles, experiments, and arithmetical problems; over four hundred illustrations; an elementary text book (1909)
Swoope, C. Walton (Coates Walton), d. 1901 · New York, D. Van Nostrand company · leaf 359
otated in a bipolarfield? Why is it differentin each case ? 321. Graphic Rep-resentation of an Al-ternating Current.—The changes in direc-tion and magnitudeof an alternating cur-rent are usually repre-sented diagramati-cally. For example,suppose an alternatingcurrent of 5 amperesto (low for one… … 309.—Students Experimental Dynamoand Motor. the current flows.The action is rep-resented in Fig.310, where thehorizontal line,P K, is dividedinto equal dis-tances, PC, CF,FK, etc., repre- 54-> 3 /5 3 Fig. 310.—Graphical Representation of anAlternating Current. senting intervals of time. The…
Electricity · Magnetism
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