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 262
The potentiometer wire scalemay be graduated to read involts instead of inches. Thus36 inches with 3 volts P. D. oaumaintained would be 12 inches Fis- 2i9.-Connections of Potenti-per volt. If the E. M. F. of °m one cell is known and used as a standard of E. M. F. theE. M. F. of any other cell may… … 244 PRACTICAL ELECTRICITY. E. M. F. is then substituted for the standard, being con-nected in opposition as before, and the distance AD notedwhen balance is obtained. The following relation then exists when AC equals lengthon potentiometer wire balanced by the standard cell, and ADequals length…
Electricity · Magnetism
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