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 69
instantly ceases, but the zinc wastes away as before. Exp. 4: Remove the zinc strip from the liquid, and while it isstill wet with the acid rub over its surface a little mercury. Uponbeing replaced in the solution the acid does not attack it. RepeatExp. 3 with this amalgamated zinc (see D 76), and… … VOLTAIC ELECTRICITY. 51 Exp. 5: Connect wires of any metal to the copper and zinc plates,being sure that you have bright metallic contacts. Bring the ex-tremities of these two wires together after they have been brightenedand hydrogen gas is seen to rise from the copper plate as before, whilethere…
Electricity · Magnetism
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