Inside Out Library · Explore
Scientific American, Vol. 45, No. 2 (1881) (1881)
leaf 7
s- the instrument is properly proportioned to its duties its in- | the amount of current passing. When it is desired to com urement of the strength of electric currents. dications may be relied upon. pare two currents the expansion wire of the index is placed In the first place the electrolytic… … EXPANSION © 1881 SCIENTIFIC AMERICIAN, INCInternet Archive · Public domain (published before 1931). Free to use for anything.
More pictures from Scientific American, Vol. 45, No. 2 (1881)
More like this
