Elementary treatise on electricity and magnetism (1903)
Foster, George Carey, 1835-1919, Joubert, Jules François, 1834-1910. Traité élémentaire d'électricité, Porter, Alfred William, 1863- joint author · London, New York, Longmans, Green, and co. · leaf 147
-V^ •SirPg Fig. 72. SKfrom which by subtraction %-n-Pg e of the two It is thus sufficient to measure the difference epositions of theplate a. 87. In order to keep this plate at a constant potential, Ij, thewhole system consisting of the plate, the guard ring, and the boxis connected with the inner… … Fig. 73. formed by the glass case of the instrument. One of two accessorypieces of apparatus serves to maintain, and the other to verify, theconstancy of the potential, Vy The first, E, which is called thereplenisher (73), increases the charge of the jar when the knob isturned in one direction, and…
Electricity · Magnetism
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