IEVref:121-11-56ID:
Language:enStatus: backup
Term: magnetic field strength
Synonym1: magnetizing field strength
[Preferred]
Synonym2:
Synonym3:
Symbol: H
Definition: vector quantity obtained at a given point by subtracting the magnetization M from the magnetic flux density B divided by the magnetic constant μ0:

H= B μ 0 −M MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGe aGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaq Fn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpe WZqaaeaaciWacmGadaGadeaabaGaaqaaaOqaaiaahIeacqGH9aqpda WcaaqaaiaahkeaaeaacqaH8oqBdaWgaaWcbaGaaGimaaqabaaaaOGa eyOeI0IaaCytaaaa@3C6A@

NOTE 1 – In vacuum, the magnetic field strength is at all points equal to the magnetic flux density divided by the magnetic constant:

H= B μ 0 MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGe aGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaq Fn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpe WZqaaeaaciWacmGadaGadeaabaGaaqaaaOqaaiaahIeacqGH9aqpda WcaaqaaiaahkeaaeaacqaH8oqBdaWgaaWcbaGaaGimaaqabaaaaaaa @3A9D@

NOTE 2 – The rotation of the magnetic field strength is the total current density Jt:

rot H = Jt

NOTE 3 – The magnetic flux density B is sometimes called “magnetic field”, risking confusion with the magnetic field strength H.


Publication date:1998-08
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