Lessons in practical electricity; principles, experiments, and arithmetical problems, an elementary text-book (1903)
Swoope, Coates Walton. [from old catalog] · New York, D. Van Nostrand company · leaf 260
connected to the points H and K, and in- dicates 4 volts. When thevoltmeter is connected acrossthe 3 ohm spool B, 6 volts areindicated. The current is thesame as through spool A, theresistance, however, being1£ times as great as A re-quires, also lj times thevoltage that A requires.Spool C has 4… … JZ VOiJS DROH i\0 VOLTS Fig. 216.—E. M. F. and PotentialDifference in a Circuit. spool A the calculated voltage isE = C X R = 2 X 2 = 4 volts. The results of the measurementsacross the four spools by a voltmeter are indicated in Fig. 216,the sum of the volts drop on all the spools is 4 -f 6 + 8 4-…
Electricity · Magnetism
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