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In a ferromagnetic core inductor, when the magnetic field approaches the level at which the core saturates, the inductance will begin to change, it will be a function of the current (). Neglecting losses, the energy W {\displaystyle W} stored by an inductor with a current I 0 {\displaystyle I_{0}} passing through it is equal to the amount of ...
For the common use of RF induction process of heating a metal object by electromagnetic induction, see induction heating. Radio-frequency induction (RF induction) is the use of a radio frequency magnetic field to transfer energy by means of electromagnetic induction in the near field.
These fields can generally be functions of position r and time t. [26] The Maxwell–Faraday equation is one of the four Maxwell's equations, and therefore plays a fundamental role in the theory of classical electromagnetism. It can also be written in an integral form by the Kelvin–Stokes theorem, [27] thereby reproducing Faraday's law:
[22] [23] This is believed to be a unique example in physics of where such a fundamental law is invoked to explain two such different phenomena. [ 24 ] Albert Einstein noticed that the two situations both corresponded to a relative movement between a conductor and a magnet, and the outcome was unaffected by which one was moving.
Maxwell's equations describing the Faraday's and Ampere's laws read: =, and =, where: is the electric field. is the magnetic field. is the vacuum permeability.; is the electric current density.
The henry (symbol: H) is the unit of electrical inductance in the International System of Units (SI). [1] If a current of 1 ampere flowing through a coil produces flux linkage of 1 weber turn, that coil has a self-inductance of 1 henry. The unit is named after Joseph Henry (1797–1878), the American scientist who discovered electromagnetic induction independently of and at about the same ...
The only fundamental scalar boson in the Standard Model of particle physics is the Higgs boson, [1] the existence of which was confirmed on 14 March 2013 at the Large Hadron Collider by CMS and ATLAS. [4] As a result of this confirmation, the 2013 Nobel Prize in Physics was awarded to Peter Higgs and François Englert. [5]
Typical torque curve as a function of slip, represented as "g" here Slip, s {\displaystyle s} , is defined as the difference between synchronous speed and operating speed, at the same frequency, expressed in rpm, or in percentage or ratio of synchronous speed.