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 261
eflections. Deflections. 5 . . . . 10 ... .15 ... . Etc. . . . ./VOLT LOST 239. Volts Lost in Wiring Leads.—The size of wire re-quired to conduct a given current a certain distance may be readily obtain-ed by findingits resistanceby Ohms Law.In Fig. 218 adynamo, D, issupplying cur-rent, 20… … / VOL.7 LOST- Fig. 218.—Volts Lost in Wiring Leads. MEASUREMENT OF PRESSURE. 243 amperes through the 200 feet of copper wire. By Formula(30) the resistance of the line equals Eh-C = 2-=-20=:.1 ohm per 200 feet, or .5 ohm per 1000 feet. From thewire table, on p. 113, is found the nearest size of…
Electricity · Magnetism
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