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 273
esame as across C. Now since the drop across 1-3 is exactly the sameas that across 1-4, 100 volts, if points 3 and 4 are connected by a wireno current will flow through it and the lamps will burn with thesame brilliancy as when 3 and 4 are not connected. If the resistanceof the lamps is fairly… … VANOMETER Fig. 227.—Students Slide Wire Bridge. Complete connections for measuring the unknown resistance at D are depicted. The students Dauiell cell and detector galvanometer are used. then the condition of balance is destroyed, the lamps at A are sub-jected to 125 volts and burn above c. p.…
Electricity · Magnetism
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