IEVref:705-03-14ID:
Language:enStatus: Obsolete
Term: magnetic constant
Synonym1: absolute permeability of vacuum
[Preferred]
Synonym2:
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Definition: a scalar constant μ0 such that, in vacuum its product by the magnetic field vector H MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdi9qqqj=hEeeu0lXdbba9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9q8qiLsFr0=vr0=vr0db8meWabaGacmaadaWaaiWabaabaiaafaaakeaadaWhcaqaaiaadseaaiaawEniaaaa@3C07@ is equal to the magnetic flux density vector B MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdi9qqqj=hEeeu0lXdbba9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9q8qiLsFr0=vr0=vr0db8meWabaGacmaadaWaaiWabaabaiaafaaakeaadaWhcaqaaiaadseaaiaawEniaaaa@3C07@ :

B = μ 0 H MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdi9qqqj=hEeeu0lXdbba9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9q8qiLsFr0=vr0=vr0db8meqabaGacmGadiWaaiWabiabciaafiaakeaadaWhcaqaaiaadkeaaiaawEniaiabg2da9iabeY7aTnaaBaaaleaaciGGVbaabeaakmaaFiaabaGaamisaaGaay51Gaaaaa@4275@

NOTE 1 – In the International System of units (SI) the value 4π × 10−7 henry per metre has been adopted for μ0.

NOTE 2 – The magnetic constant is related to the electric constant ε0 and to the speed of propagation of electromagnetic waves in vacuum c0 by ε0μ0c02 = 1.


Publication date:1995-09
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Internal notes:2015-09-29: \epsilon and \mu corrected to italic in accordance with EJ's replies 705 maths. JGO

2017-06-02: Cleanup - Remove Attached Image 705-03-141.gif

2017-06-02: Cleanup - Remove Attached Image 705-03-142.gif

2017-06-02: Cleanup - Remove Attached Image 705-03-143.gif
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