It is the theory (see the theory of Oertted) that a magnetic field is created around the wire when a current is flowing through the wire. Will a magnetic field change around the wire, in contrast, create a current in the wire?
Michael Faraday, a British chemist and physicist, succeeded in experimenting with electric fields (electric currents) from magnetic fields first. To obtain a magnetic field from an electric field or to obtain an electric field from a magnetic field is referred to as electromagnetic induction and to produce an electromagnetic current. Faraday's Law of Induction describes the laws of the electromagnetic induction of Faraday.
" Changing the magnetic field around the wire leads to a current in the wire. The voltage of the induced current is proportional to the amount of variation in the magnetic field. "
Both the generator and the electric motor are operated by induced current. Russian physicist Heinrich Lenz (1865) published the Law of Renz in 1833 (see the Law of Lorenz) as a result of further pursuit of Faraday's Law.
" Inductive currents occur in a direction that prevents the magnetic flux from changing through the coil. "
Faraday was the greatest experimental scientist of the nineteenth century, with pioneering achievements in the field of electromagnetism. He invented electric motors, generators, and transformers and also discovered the laws of electrolysis. Einstein had three pictures of scientists in his room : Faraday and Newton and Maxwell.
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