Georg Ohm, in full Georg Simon Ohm, (born March 16, 1789, Erlangen, Bavaria [Germany]—died July 6, 1854, Munich), German physicist who discovered the law, named after him, which states that the current flow through a conductor is directly proportional to the potential difference (voltage) and inversely proportional to the resistance. As a school teacher, Ohm began his research with the new electrochemical cell, invented by Italian scientist Alessandro Volta. This relationship is known as Ohm's law. In his first paper published in 1825, Ohm examines the decrease in the electromagnetic force produced by a wire as the length of the wire increased. Georg Ohm, German mathematician and physicist, began his important publications in 1825. Using equipment of his own creation, Ohm found that there is a direct proportionality between the potential difference (voltage) applied across a conductor and the resultant electric current. Georg Simon Ohm was a German physicist and mathematician. The paper deduced mathematical relationships based purely on the experimental evidence that Ohm had tabulated.