## Dr. Ahmed G. Abo-Khalil

Electrical Engineering Department

## Magnetic capacitan

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:

$C_M$ is the magnetic capacitivity (SI Unit: -s·Ω-1)
$omega$ is the angular frequency of the magnetic circuit

In complex form it is written as an imaginary number:

$-jx_C = -jfrac{1}{omega C_M} = frac{1}{jomega C_M}$
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

Monday 10 -2

Tuesday 10-12

Thursday 11-1

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email: a.abokhalil@mu.edu.sa

a_galal@yahoo.com

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