Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 878
amp by the above method, Rshould have a resistance greater than that of the lamp, and thewire should be of such a diameter as to be capable of carryingthe current required by the lamp without appreciable heating. It is evident that two ordinary galvanometers could be sub-stituted for the… … Fig. 544. scribed above, offer, perhaps, the most satisfactory means ofmeasuring with a rheostat the hot resistance of an arc lamp,which, of course, includes the resistance equivalent of thecounter electro motive force of its arc. The following methods are applicable to the measurement ofthe…
Electrical engineering
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