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 260
30 VOLTS Fig. 215.—Measuring the VoltsDrop with a Voltmeter, resistances of 2, 3, 4, and 6 ohms respectively, are connected in ser-ies and to a battery. The spools may represent lamps, magnets, or MEASUREMENT OF PRESSURE. 241 6 VOLTS DROP … SVOUtSCROP n V01.TS DROP VOLTS any other electrical devices. When the battery circuit is closedthrough the above circuit, and the voltmeter connected directlyacross its terminals, 30 volts potential difference is indicated. Thetotal external resistance is 2 + 3 + 4 + 6 = 15 ohms, and the 30volts…
Electricity · Magnetism
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