magnetic constant

(redirected from Permeability of vacuum)
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magnetic constant

n
(General Physics) the permeability of free space, which has the value 4π × 10–7 henry per metre. Symbol: M0 Also called: absolute permeability
References in periodicals archive ?
where B is the magnetic flux density, M is the magnetization vector, I is the identity matrix, and [[mu].sub.0] is the magnetic permeability of vacuum, which is 4[pi] x [10.sup.-7] H/m.
Here, m is the magnetization of a single atom or ion, and [[mu].sub.0] is the permeability of vacuum.
where [[mu].sub.0] is permeability of vacuum, I is coil current, R is coil radius and x is distance of investigated point on axis from one of coils.