Magnetic inductance: Difference between revisions

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{{MagneticCircuitSegments}}
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'''Magnetic impedance''' ([[SI Unit]]: -[[Omega|Ω]]<sup>−1</sup>) is the ratio of a sinusoidal magnetic tension <math>N_m</math> to a sinusoidal [[magnetic current]] <math>I_{Mm}</math> in a [[gyrator-capacitor model]]. Analogous to [[electrical impedance]], magnetic impedance is likewise a complex variable.
 
:<math>z_M = \frac{N}{I_M} = \frac{N_m}{I_{Mm}}</math>
 
Magnetic impedance is also called the ''full'' magnetic resistance. It is derived from:
 
:<math>r_M = z_M \cos \phi</math>, the [[magnetic effective resistance|effective magnetic resistance]] (real)
:<math>x_M = z_M \sin \phi</math>, the [[magnetic reactive resistance|reactive magnetic resistance]] (imaginary)
 
The phase angle <math>\phi</math> of the magnetic impedance is equal to:
 
:<math>\phi = \arctan {\frac{x_M}{r_M}}</math>
 
== See also ==
*[[Magnetic complex impedance]]
 
== References ==
* Pohl R. W. ELEKTRIZITÄTSLEHRE. – Berlin-Göttingen-Heidelberg: SPRINGER-VERLAG, 1960.
* Popov V. P.  The Principles of Theory of Circuits. – M.: Higher School, 1985, 496 p. (In Russian).
* [[Karl Küpfmüller|Küpfmüller K]]. Einführung in die theoretische Elektrotechnik, Springer-Verlag, 1959.
 
[[Category:Magnetic circuits]]

Latest revision as of 23:00, 16 October 2014

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