On March 16, 1787, Georg Simon Ohm, a physicist and mathematician, was born in Erlangen, Bavaria (Germany). he contributed a lot to physics, especially to electrodynamics, where he established the law named after his Name.
A student at the University of Erlangen, he obtained his doctorate in 1811 with the presentation of his dissertation on light and color.
Ohm began his career as a mathematics teacher at the Colégio dos Jesuitas, in the city of Cologne, in 1825.
His intention was to become a university professor, so he continued with his work and research, dedicating himself to electricity.
Ohm experimented with conducting wires of different thicknesses and lengths. He found that the electrical resistance of the conductor was inversely proportional to the cross-sectional area of the wire and directly proportional to its length. From his observations, he defined the concept of electrical resistance.
In 1827 he published the result of what became his most important work-The Galvanic Circuit Examined Mathematically. This work defined what we know today as Ohm's Law: “The intensity of the electric current that runs through a conductor is directly proportional to the potential difference and inversely proportional to the electrical resistance of the circuit."
Despite the importance of his research, Ohm received negative reviews, and did not get a university position until the year 1833, when he became professor at the Polytechnic School of Nürnberg, Bavaria, becoming director in 1839.
It was not until 1841 that the importance of his work on conductor resistance was recognized, and Ohm was awarded the Royal British Society Medal.
In 1849, Ohm became a professor at the University of Munich, a position he held for just five years, the last of his life.
Ohm died in Munich on July 16, 1854.
By Kléber Cavalcante
Graduated in Physics
Source: Brazil School - https://brasilescola.uol.com.br/fisica/georg-simon-ohm.htm
