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 176
ntact with the metal plates, and this causes a small decreaseof electromotive foice while the current is passing. The normalelectromotive force of a Daniells cell is aboiit 1 07 volt. In Groves battery (1840) the evolution of hydrogen is sup-pressed by the employment of strong nitric acid, which… … Csgg Fig. 100. 109] VARIOUS FORMS 153 the nitric acid by a partition of porous earthenware. The use ofnitric acid necessitates the replacement of copper by a metal,platinum, which the acid does not attack. Bunsens battery (Fig. 101) is a modification of Groves, inwhich rods of dense gas-graphite…
Electricity · Magnetism
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