Lessons in practical electricity; principles, experiments, and arithmetical problems, an elementary text-book (1903)
Swoope, Coates Walton. [from old catalog] · New York, D. Van Nostrand company · leaf 80
small particles of carbon, iron, tin, lead, etc., andwhen a rod of such zinc is placed in a cell theseforeign particles form numerous local voltaic cells onthe surface of the zinc inside the cell, with the resultthat the zinc is being continuously eaten away, Fig. 77.whether the cell is in action… … 62 PRACTICAL ELECTRICITY. would flow from the iron to the zinc through the solution andfrom the zinc to the iron across the junction. This is knownas local action. In some cells local action is also caused bya difference in the density of the liquid at various parts ofthe cell. In this case the…
Electricity · Magnetism
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