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Michael Faraday is credited with the discovery of electromagnetic induction on August 29, 1831. While Faraday receives credit for the discovery, electromagnetic induction may have been anticipated by the work of Italian priest and physicist Francesco Zantedeschi in 1829 or that of Joseph Henry, who around 1830 made a similar discovery, but did not publish his findings until later. Faraday formulated that electromotive force produced around a closed path is proportional to the rate of change of the magnetic flux through any surface bounded by that path.
Faraday's Law says that the emf induced (and therefore the current induced) in the loop is proportional to the rate of change in magnetic flux: e is the emf, which is the work done moving charges around the loop, divided by the charge. It is similar in concept to voltage, except that no charge separation is necessary.nduced Currents, Induced EMF, and Faraday's Law. If a coil of wire is placed in a changing magnetic field, a current will be induced in the wire. This current flows because something is producing an electric field that forces the charges around the wire.