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 74
Fig. 72.—Direction of the Current. VOLTAIC ELECTRICITY. 55 POSJTJVEPOLE ORELECTRODE … NEGATIVE poije on ELECTROOB PGSIJlVnPJLATT2 the external end of the zinc plate, or wire connected thereto,the negative pole or electrode. Fig. 73. If we bring the +(plus sign for the positive) and — (minus sign for negative)wire from a cell together, making the circuit, the current passes from the…
Electricity · Magnetism
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
