magnetic dipole moment


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magnetic dipole moment

[mag′ned·ik ′dī‚pōl ‚mō·mənt]
(electromagnetism)
A vector associated with a magnet, current loop, particle, or such, whose cross product with the magnetic induction (or alternatively, the magnetic field strength) of a magnetic field is equal to the torque exerted on the system by the field. Also known as dipole moment; magnetic moment.
References in periodicals archive ?
Equations (3a)-(3b) imply that the magnetic dipole moment obeys the transformation (see, e.
However, Fisher [5] derives a quite different transformation rule for magnetic dipole moment, proceeding from the formal definition of magnetic dipole moment
Here we notice that the contribution to the magnetic dipole moment proportional to the cross product ([p.
and the definition of magnetic dipole moment (5) is correct, when [nabla] x j = 0, and in Section 2 we will essentially use this requirement.
perpendicular to]] and the magnetic dipole moment is defined from (45) in case when the magnetic dipole moment m is directed lengthwise z:
Taking into account (47), intensities of the electromagnetic field by the magnetic dipole moment are defined from the solutions (28) in this case, as following :
If we let S [right arrow] 0 and I [right arrow] [infinity] in such as way that m = IS remains constant, we obtain the vector potential of a magnetic dipole with magnetic dipole moment m = IS[a.
As a result, the direction of the magnetic dipole moment of the image loop is reversed from that of the original.
We now calculate the portion of the magnetic dipole moment due only to the bound current density using (24):
The magnetic potential and magnetic field produced by a dipole parallel to the interface is proportional not to the excess magnetic dipole moment but to the net magnetic dipole moment.
Thus, taking the gap into account, the total magnetic dipole moment is
are the electric and magnetic dipole moments of the scatterer, respectively, see [10,11] and [12, Sect.