How is magnetic charge (qm) calculated?

Question

How is magnetic charge (qm) calculated?

sroussel (Automotive)

(OP)

3 Jun 08 14:42

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!

hacksaw (Mechanical) · Answer 1 · 2008-06-11 06:22:35

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

7anoter4 (Electrical) · Answer 2 · 2008-07-02 16:46:38

For the beginning
See:
http://en.wikipedia.org/wiki/Magnetic_monopole
See : Magnetic properties of materials
http://info.ee.surrey.ac.uk/Workshop/advice/coils/mu/#itns
or may be: Introduction to Electromagnetic:
http://books.google.com/books?id=dpnpMhw1zo8C&pg=PA153&dq=isbn:0763738271&sig=PgEEBA6TQEZ5fD_AhJQ8dd7MGHo#PPR10,M1
Regards

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How is magnetic charge (qm) calculated?