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 407
mperes at112 volts to a group of lamps located 75 feet from the generator. Re-sistance of leads .02 ohm ; armature .01 ohm ; series coil .02 ohm ;shunt coil 40 ohms ; 14 K. W. are required to drive the machine,Fig. 370. Find the following : (a) P. D. at brushes ; (b) total E. M. F. generated; (c)… … Leads -os. ohm (vm) VoltS. OO Amperes VSTeet- M Fig. 370.—E. M. F. and P. D. of a Compound Wound Dynamo. By Formula (29) E 100 X .02 = 2 volts drop in leads. 114 volts P. D. at terminals. 100 X .02 = 2 volts drop on series G X R 112+ 2(29) E = GXEfield.114 + 2 = 116 volts P. D. at brushes (a116…
Electricity · Magnetism
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