Modern electricity and magnetism, theoretically and practically considered (1885)
Avery, Elroy M[cKendree], 1844- [from old catalog] · New York and Chicago, Sheldon and company · leaf 99
the carbon plate.The space between the carbon plateand the cup is filled with fragmentsof carbon and powdered peroxide ofmanganese. This cup replaces thesecond metal plate. The liquid usedis a solution of ammonium chloride(sal-ammoniac) in water. This cellis tolerably constant if it be not usedto… … Fig. 184. VOLTAIC ELECTRICITY. ^zm It is much used for working telephones, electric bells(Fig. 232) and clocks, railway signals, etc. The man-ganese oxide prevents polarization by destroying thehydrogen bubbles. If the cell be used continuously forsome time, its power weakens owing to the…
Electricity · Magnetism
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