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# Magnetic capacitance

Magnetic Circuits

Conventional Magnetic Circuits
• Magnetomotive force $\mathcal F$
• Magnetic flux Φ
• Magnetic reluctance $\mathcal R$

Phasor Magnetic Circuits

Related Concepts

Gyrator-capacitor model variables
This box:

Magnetic capacitance (capacitive magnetic reactance) (SI Unit: -Ω−1) is a magnetic "reactance" which prevents magnetic "current" in oscillating magnetic circuits from rising. This is associated with high reluctance.

For harmonic regimes it is equal to: $x_C = \frac{1}{\omega C_M}$

Where:

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

In complex form it is written as an imaginary number: $-jx_C = -j\frac{1}{\omega C_M} = \frac{1}{j\omega C_M}$

The electrical potential energy sustained by Magnetic capacitivity varies with the frequency of oscillations in magnetic fields. The average power in a given period is equal to zero. The magnetic capacitivity is a reactive part of the magnetic circuit[1, 2].

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