French physicist, best known as for the formulation of Coulomb's law, Which states that the force between two electrical charges is proportional to the product of the charges and inversely proportional to the square of the distance between them. Coulombic force is one of the principle forces involved in atomic interactions.
Coulomb developed his law as an outgrowth of his attempt to investigate the law of electrical repulsions as stated by Joseph Priestly of England. To this end he invented sensitive apparatus to measure the electrical forces involved in Priestly's law and published his findings in 1785-89. He also established the inverse square law of attraction and repulsion of unlike and like magnetic poles, which become the basis for the mathematical theory of magnetic forces developed by Simeon- Denis Poission. The coulomb, a unit of electric charge, was named after Coulomb in his honour.
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