Lessons in practical electricity; principles, experiments, and arithmetical problems; over four hundred illustrations; an elementary text book (1909)
Swoope, C. Walton (Coates Walton), d. 1901 · New York, D. Van Nostrand company · leaf 85
of sulphuric 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 H.2S04 in porous cup. carbon in a bichromate solution. Another form BA TTER1ES. 67 85. Partz Acid Gravity Cell.—In the Partz acid gravityform of cell, Fig. 81-A, the electrolyte which surroundsthe /.me is either magnesium sulphate or common salt.
Electricity · Magnetism
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