Martin Ohm's brother was working at what profession when he began his research with the new electrochemical cell?
Martin Ohm Martin Ohm (May 6, 1792, Erlangen – April 1, 1872, Berlin) was a German mathematician and a younger brother of physicist Georg Ohm.
Jacques-Arsène d'Arsonval Jacques-Arsène d'Arsonval (June 8, 1851 – December 31, 1940) was a French physician, physicist, and inventor of the moving-coil D'Arsonval galvanometer and the thermocouple ammeter. D'Arsonval was an important contributor to the emerging field of electrophysiology, the study of the effects of electricity on biological organisms, in the nineteenth century.