A French physicist, Coulomb started his career as military engineer in West Indies. He invented a torsional balance and used it to perform experiments to determine the nature of interaction forces between charges and magnets. He presented the result of these experiments in the form of Coulomb’s law of electrostatics and Coulomb’s law of magneto statics.
The SI unit of charge has been named in his honour. He also did research on friction of machinery, on windmills, and on the elasticity of metal and silk fibres. By measuring the angle through which the rod twisted, Coulomb could measure the repulsive forces. The coulomb, a unit of electric charge, was named in his honour. He is best known for formulating columb’s low.
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