Lessons in practical electricity; principles, experiments, and arithmetical problems, an elementary text-book (1902)
Swoope, Coates Walton. [from old catalog] · New York, D. Van Nostrand company · leaf 85
ulphuric acid or water, andthen placed in a glass or earthenjar containing the bichromatesolution and the carbon plate.The acid diffuses through theporous cup rapidly enough toattack the zinc, which, beingwell amalgamated, prevents localaction. The hydrogen travelsfrom the zinc through the… … Fig. 80.—Fuller Cell. Zinc in dilute H2SO4 in porous cup, carbon in a bichromate solution. Another form BATTERIES. 67 85. Partz Acid Gravity Cell.—In the Partz acid gravityform of cell, Fig. 81-A, the electrolyte which surroundnthe zinc is either magnesium sulphate or common salt.
Electricity · Magnetism
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