EA 227 Lecture Notes - Electromagnetic Induction, Michael Faraday, Rotating Magnetic Field
Document Summary
Electromagnetic induction is the process of generating an electric current by moving a conductor through a magnetic field or by changing the magnetic field around a conductor. Michael faraday in 1831 and is based on the principle that a changing magnetic field induces an electric current in a conductor. The induced current flows in a direction that opposes the change in magnetic field that produced it. The amount of current induced depends on the rate of change of the magnetic field and the properties of the conductor, such as its length and the strength of the magnetic field. Electromagnetic induction is used in a variety of applications, including generators, transformers, and motors. In generators, mechanical energy is used to rotate a coil of wire through a magnetic field, inducing an electric current in the wire that can be used as an energy source.
