Johnson's natural philosophy and key to philosophical charts : illustrated with 500 cuts; being reduced photographic copies of all the diagrams contained in the author's philosophical series of indestructible school charts ; for the use of schools and families (1878)
same metal, which, with the otherstrip of copper, constitutes the electrodes. As in the Grove battery (738), there isa double chemical action. Water is de-composed in the outer vessel, giving itsoxygen to the zinc, forming oxyde ofzinc. The liberated hydrogen passes through the porous vessel,… … o o L> oho ELECTRICITY The carbon is the positive and the zinc the negative pole of the couple.The positive fluid, therefore, passes from the carbon to the zinc. 740- Figure 38.—Batteries of t-wo or more couples.— Any number of couples may be united by attaching the copper strip ofthe zinc…
Physics · Astronomy
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