The principles underlying radio communication (1922)
United States. National Bureau of Standards, Ould, Richard Sheldon, 1889-, United States. Army. Signal Corps · Washington, Govt. Print. Off. · leaf 57
regarded as the seat of an emf. In case the tem-I)erature of J is lower than that of CC\ the direction of thecurrent will be reversed. In the following table some commonmetals are so arranged that when any two of them are chosenfor the circuit, current flows across the heated junction fromany one… … ELECTROMOTIVE FORCE. 55 because whatever effect is developed at one point of contactwith the solder, is annulled at the other. Of the pure metals,a thermocouple made of bismuth and antimony g:ives thegreatest thermoelectromotive force for a given difference intemperature. However, certain alloys…
Telegraph, Wireless · Radio
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