Magnetic inductance

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Magnetic circuits
Conventional magnetic circuits Magnetomotive force ${\mathcal F}$ Magnetic flux $\Phi$ Magnetic reluctance ${\mathcal R}$
Phasor magnetic circuits Complex reluctance $Z_{\mu }$
Related concepts Magnetic permeability $\mu$
Gyrator-capacitor model variables Magnetic impedance $z_{M}$ Effective resistance $r_{M}$ Magnetic inductivity $L_{M}$ Magnetic capacitivity $C_{M}$
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Magnetic inductance is not to be confused with "Magnetic induction", which usually refers to Magnetic field.

Magnetic inductance (inductive magnetic reactance) (SI Unit: -Ω⁻¹) is a component in the gyrator-capacitor model for magnetic systems.

For phasor analysis the magnetic inductive reactance is:

$x_{L}=\omega L_{M}$

Where:

$L_{M}$ is the magnetic inductivity (SI Unit: -s·Ω^-1)

$\omega$ is the angular frequency of the magnetic circuit

In the complex form it is a positive imaginary number:

$jx_{L}=j\omega L_{M}$

The magnetic potential energy sustained by magnetic inductivity varies with the frequency of oscillations in electric fields. The average power in a given period is equal to zero. Due to its dependence on frequency, magnetic inductance is mainly observable in magnetic circuits which operate at VHF and/or UHF frequencies.

The notion of magnetic inductivity is employed in analysis and computation of circuit behavior in the gyrator-capacitor model in a way analogous to inductance in electrical circuits.

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).

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Magnetic inductance

See also

References