Gage, Alfred P. (Alfred Payson), 1836-1903 · Boston, London, Ginn · leaf 503
instrumentis called a galvanoscope or current detector, since one of itsimportant uses is to detect the presence of a current. Agraduated card divided off like that of the mariners compassis placed beneath the needle so that the number of degreesof deflection may be read from it. Fig. 380… … ■BATTE8V Pig. 379.
Physics
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
