|Part of a series on|
|Conventional magnetic circuits|
|Phasor magnetic circuits|
|Gyrator-capacitor model variables|
- Magnetic inductance is not to be confused with "Magnetic induction", which usually refers to Magnetic field.
In a magnetic circuit, magnetic inductance (inductive magnetic reactance) is the analogy to inductance in an electrical circuit. Magnetic inductance is a concept in the gyrator-capacitor model for magnetic systems.In the SI system, it is measured in units of -Ω−1. This model makes magnetomotive force (mmf) the analog of electromotive force in electrical circuits, and time rate of change of magnetic flux the analog of electric current. The gyrator-capacitor model is a lumped-element model for analysis of magnetic fields.
For phasor analysis the magnetic inductive reactance is:
In the complex form it is a positive imaginary number:
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.
- 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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