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auxiliary field H (Definition)

The auxiliary field, H is defined from the magnetic field B, the magnetization M and the permeability of free space $\mu_0$.

$\displaystyle {\bf H} = \frac{{\bf B}}{\mu_0} - {\bf M}$

Confusion sometimes arises because the H field was named the magnetic field or magnetic field intensity in the past, while B was denoted as the magnetic flux density or magnetic induction. Similar to Thermodynamics, where we can talk about macroscopic phenomenon and solve problems without dealing with microscopic properties, the H field is a macroscopic field like the electric displacement D.

References

[1] Magnetic field, Wikipedia

[2] Jackson, D. "Classical Electrodynamics", John Wiley and Sons, Inc., 1975.

[3] Griffiths, D. "Introduction to Electrodynamics", Prentice-Hall, Inc., 1999.



"auxiliary field H" is owned by bloftin.

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Other names:  magnetic field intensity

Cross-references: Thermodynamics, flux, magnetization, magnetic field, field

This is version 2 of auxiliary field H, born on 2006-01-14, modified 2006-01-14.
Object id is 102, canonical name is AuxiliaryFieldH.
Accessed 1779 times total.

Classification:
Physics Classification: 41.20.Gz (Magnetostatics; magnetic shielding, magnetic induction, boundary-value problems)
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