Dating name generator

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To increase the generated EMF, a common approach is to exploit flux linkage by creating a tightly wound coil of wire, composed of N identical turns, each with the same magnetic flux going through them.The resulting EMF is then N times that of one single wire.The dot product B·d A corresponds to an infinitesimal amount of magnetic flux.In more visual terms, the magnetic flux through the wire loop is proportional to the number of magnetic flux lines that pass through the loop.The EMF generated by Faraday's law of induction due to relative movement of a circuit and a magnetic field is the phenomenon underlying electrical generators.When a permanent magnet is moved relative to a conductor, or vice versa, an electromotive force is created.The magnetic field lines are indicated, with their direction shown by arrows.

Rectangular wire loop rotating at angular velocity ω in radially outward pointing magnetic field B of fixed magnitude.The circuit is completed by brushes making sliding contact with top and bottom discs, which have conducting rims.This is a simplified version of the drum generator.Michael Faraday is generally credited with the discovery of induction in 1831, and James Clerk Maxwell mathematically described it as Faraday's law of induction.Lenz's law describes the direction of the induced field.

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