Electrical and scientific instruments and apparatus : november 20th, 1899 (1899)
Elmer G. Willyoung & Co · New York : E.G. Willyoung · leaf 54
its resistance measured in terms of the coils of the set. It changes oneohm in apparent resistance as so measured for each change of 1°C in tem-perature, thus enabling the real temperature of the coils to be found farmore accurately and conveniently than by use of the mercury thermo-meter. Brass…
Electric apparatus and appliances · Equipment and supplies
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