Elementary treatise on electricity and magnetism : (1905)
Foster, G. C. (George Carey), 1835-1919, Joubert, J. (Jules François), 1834-1910, Porter, Alfred W. (Alfred William), 1863-1939 · London ; New York ; Bombay : Longmans, Green, and Co. · leaf 148
Fig. 72 «) /SttP;/ It is thus suflicient to measure the difference e - e of the twopositions of the plate a. 87. In order to keep this plate at a constant potential, T^, thewhole system consisting of the plate, the guard ring, and the boxis connected with the inner coating of a Leyden jar, which is… … Fia, formed by the gla.s.s case of the instruuient. One of two accessoryl)ieces of apparatus serves to maintain, and the other to verify, theconstancy of the potential, F^. The first, R, which is called thereplenisher (73), increases the charge of tlie jar when the knob isturned in one direction,…
Electricity · Magnetism
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