Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 836
r through the unknownresistance, w. For determining the constant of the instrumenta known resistance is substituted for the unknown in the lastcase. Mr. Cardew has also designed an instrument on thesame principle, in which, instead of varying the resistance,the distance between the coils is varied.… … Fig. 517. side and parts of an ohm on the other. Magnets may be addedto both instruments to make them more or less dead beat. ELECTRO DYNAMOMETER. For measuring currents whose direction is always the same,the apparatus which has been described answers every purpose.In cases, however, where…
Electrical engineering
Internet Archive · Northeastern University Library · Public Domain Mark 1.0. Free to use for anything.
