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 74
Direction of the Current. VOLTAIC ELECTRICITY. 55 … 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)whe from a cell together, making the circuit, the current passes from the -f- (copper)to the—(zinc) termhialacross the…
Electricity · Magnetism
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