Lessons in practical electricity; principles, experiments, and arithmetical problems, an elementary text-book (1902)
Swoope, Coates Walton. [from old catalog] · New York, D. Van Nostrand company · leaf 251
side, and thesame drop on the other side of the line. Since there are 5volts drop on 10 feet of wire of uniform resistance the dropper foot will be J volt, or 1 volt for every 2 feet, etc. Thevoltmeter when placed in parallel with any length of the wirewill indicate the difference of potential… … 232 PRACTICAL ELECTRICITY, now indicates onl}^ 40 volts. The difference in pressurebetween points A and B is 20 volts, since twice the currentthrough the same resistance requires double the pressure tobe applied. The availal)le pressure applied to the lamps is40 volts. If the wires considered above…
Electricity · Magnetism
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