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What is the relationship between magnet length in the permanent magnet length and the flux density?
Wiki User
∙ 9y ago
Magnetic flux density = mu x magnetizing intensity. ie B = mu H.
mu is known as magnetic permeability of the medium. If it is just air or vacuum, then mu is mu0 ie permeability of free space whose value is 4pi x 10 -7 H/m.
If it is other than air or vacuum then the permeability will be mur mu0 where mur is known as relative permeability. If mur is less than one then the magnetic material will be dia magnetic. If mur is slightly greater than one then magnetic material is para magnetic. If mur is very much greater than one then magnetic material is ferro magnetic.
Wiki User
∙ 14y ago
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