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Quick Answer. Michael Faraday discovered the law of electromagnetic induction in 1831. He realized that current in a circuit can be induced by changing the magnetic field. Faraday tested it by wrapping a paper cylinder with a wire and connecting the coil to a galvanometer. Faraday then moved the magnet back and forth inside the cylinder.
On Faraday's uses of the lines of force, Maxwell wrote that they show Faraday to have been in reality a mathematician of a very high order â one from whom the mathematicians of the future may derive valuable and fertile methods.. The SI unit of capacitance is named in his honour: the farad.araday is also responsible for discovering the laws of electrolysis, and for popularizing terminology such as anode, cathode, electrode, and ion, terms proposed in large part by William Whewell. Faraday was the first to report what later came to be called metallic nanoparticles.