Elementary treatise on physics experimental and applied for the use of colleges and schools (1890)
Ganot, A. (Adolphe), 1804-1887, Atkinson, E. (Edmund) · New York : W. Wood · leaf 908
the other station.Now, from the principle of the bridge, theresistances AB and AC may be adjustedn such a manner that the potentials atthe points B and C are equal when thekey is depressed and the current sent ;accordingly no current passes in the bridge,and the galvanometer is at rest; but the… … \\>s^\VaV^\V;<;\<\\v Fig. 857. -896] The Sounder. 883 leakage ; but for these, as well as for quadruplex telegraphy, special manualsmust be consulted. 894. Earth currents.— In long telegraph circuits more or less powerfulcurrents are produced, even \\hcn the battery is not at work. This…
Physics
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