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 331
licable to calculations of circuits for alternating currents.The R in Ohms Law for alternating currents is equal to thesquare root of the sum of the squares of the resistance andreactance (i li - — .,■-). The total opposition offered to theflow of an alternating current by the resistance and the… … Pig. 280.—Effects of Self-induction. 298. Choke Coils.— Exp. 85 : In Fig. 280 a solenoid of several ohms resistance woundin the ordinary manner, is connected in series with an incandescentlamp and to a source of direct current (D. C.) by throwing the switch,S, down. The brilliancy of the lamp is…
Electricity · Magnetism
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