Electromagnetics

Eddy current losses

Eddy current losses

The Eddy current losses with suitable examples and sketches are discuss here advanced.When the magnetic flux penetrating continuous conducting bodies undergoes changes, then in accordance with the law of electromagnetic induction, electromotive forces are induced and electric currents appear. The electric charges that form these currents move along closed circuits in planes normal to the …

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Magnetization and magnetization reversal of ferromagnets

Magnetization and magnetization reversal of ferromagnets

Iron, cobalt, nickel and some other materials and alloys constitute a special group of substances by the nature of the reaction to the action of a magnetic field. In an external relatively weak magnetic field, they are able to acquire a large magnetization. These metals are united by the name of ferromagnets, and the phenomena …

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Eddy current losses

Maxwell’s equations

The conversion of electrical energy in machines is carried out using electromagnetic fields, the mathematical description of which in the most general form corresponds to Maxwell’s equations. The first equation establishes the relationship between electric current and magnetic field strength,Maxwell’s equations where and are the vectors of the magnetic field strength and elementary displacement along …

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magnetic materials are

Magnetic Materials

Types of Magnetism -magnetic material At first Magnetic materials Material may be classified into one of five categories depending on its magnetisation characteristics. Diamagnetic materials Paramagnetic materials Antiferromagnetic materials Ferromagnetic materials Ferromagnetic materials Also Diamagnetic, Paramagnetic and Antiferromagnetic material were non-magnetic material. Also Ferromagnetic and Ferrimagnetic materials magnetic materials. Diamagnetic materials A material whose relative …

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