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# How is magnetic charge (qm) calculated?

## How is magnetic charge (qm) calculated?

(OP)
I'm working on a project that requires the calculation of magnetic fields. The equations I am using have a permeability term (k') and the magnetic charge term (qm). Is there a way to calculate or estimate qm? Can anyone recommend any literature?

Thanks!
Replies continue below

### RE: How is magnetic charge (qm) calculated?

the term magnetic charge is used because of the mathematical analogy with calculating electrostatic fields.

it is equivalent to the divergence of the magnetization within the volume; at the surface you use greens theorem to show that the surface charge is equivalent to the dot product of the surface normal and the surface magnetization...

if you have to ask this question, then you probably need to rephrase your question to get help in calculating the field

good luck

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