Modern practice of the electric telegraph. A handbook for electricians and operators. By Frank L. Pope.
Publisher: Scholarly Publishing Office, University of Michigan Library
Published: December 20, 2005
Language: eng
Format: Paperback
Number of pages: 190
ISBN-13: 9781425515249
Subjects: Electrical engineering; Industrial Chemistry & Manufacturing Technologies; Technology; History - U.S.; Science/Mathematics; United States - General; History / United States / General; Manufacturing
First sentence: 1. SIMPLE GALVANIC CIRCUIT.-If two plates of different metals, such as copper and zinc for example, are immersed in a vessel of water to which a small portion of sulphuric acid has been added, and the upper ends of the two plates are brought in contact, or connected together with a metallic wire as in fig. 1, a continuous current of electricity will pass from the copper to the zinc through the connecting wire, and from the zinc to the copper through the liquid, as indicated by the arrows in the figure.