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Scientific American, Vol. 45, No. 2 (July 1881) (1881)
leaf 7
the instrument is properly proportioned to i1 s duties its in- the amount of current passing. When it is desired to com urement of the strength of electric currents. ! pare two currents the expansion wire of the index is placed dications may be relied upon. In the first place the electrolytic… … EXPANSION VOLTAMETER. ©1881 SCIENTIFIC AMERICIAN, INCPatents · Boiler · Patented · Faure · Water · Scientific American · Battery · Plante battery · Faure battery · Foot pounds · Red lead · Water glass · Trade catalogs · Supreme Court · Narrow gauge · Electric light
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