Magnetic capacitance

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 = 1 ω C M

Where:

C M 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:

− j x C = − j 1 ω C M = 1 j ω 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 capacitance is a reactive part of the magnetic circuit.