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Magnetic inductance

 
Wikipedia: Magnetic inductance
Magnetic Circuits

Convetional Magnetic Circuits
Magnetomotive force \mathcal F
Magnetic flux Φ
Magnetic reluctance \mathcal R

Phasor Magnetic Circuits
Complex reluctance Zμ

Related Concepts
Magnetic permeability μ

Gyrator-Capacitor Model variables
Magnetic impedance zM
Effective resistance rM
Magnetic inductivity LM
Magnetic capacitivity CM
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:

xL = ωLM

Where:

LM is the magnetic inductivity (SI Unit: -s·Ω-1)
ω is the angular frequency of the magnetic circuit

In the complex form it is a positive imaginary number:

jxL = jωLM

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 grator-capacitor model in a way analogous to inductance in electrical circuits.

References

  1. Pohl R. W. ELEKTRIZITÄTSLEHRE. – Berlin-Gottingen-Heidelberg: SPRINGER-VERLAG, 1960.
  2. Popov V. P. The Principles of Theory of Circuits. – M.: Higher School, 1985, 496 p. (In Russian).



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