Lessons in practical electricity; principles, experiments, and arithmetical problems; over four hundred illustrations; an elementary text book (1909)
Swoope, C. Walton (Coates Walton), d. 1901 · New York, D. Van Nostrand company · leaf 254
lresistance is now equal to the internal resist-ance there is 1 volt drop inside the cell. Short circuit the cell by avery low resistance and the voltmeter indicates practicallv zero, thecurrent from the cell is a maximum and all of the K. M. F., 2 volts,is used in sending the current through the… … FiLr.LMn.—Variation ofP.D. and Current with aVariation of Resistance. Ohms External Circuit, R. Volts Across Battery, P. D. Amperes, C. Infinitv Equal to E. M. F. 0 Great compared with r Verv little less thanE. M. F. Small R, say any value RJrXE.M.F. Small F. M. F.R + r Small compared with r Large…
Electricity · Magnetism
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