demagnetizing's Usage Examples:

retained by a bar of ferromagnetic metal after it has been removed from the influence of an external field produces a demagnetizing force NI T, which is greater the smaller the dimensional ratio.

The demagnetizing force inside a cylindrical rod placed longitudinally in a uniform field Ho is not uniform, being greatest at the ends and least in the middle part.

With these arrangements there is no demagnetizing force to be considered, for the ring has not any ends to produce one, and the force due to the ends of a rod 400 or 500 diameters in length is quite insensible at the middle portion; H therefore is equal to Ho.

Since H, generally tends to oppose the external force, thus making H less than H o, it may be called the demagnetizing force.

19 shows the apparatus by which the ends of the bar are prevented from exerting any material demagnetizing force, while the permeance of the magnetic circuit is at the same time increased.

Since I KH, we have KH I-KNI KHo, (30) or H Ho-NI, NI being the demagnetizing force H i.

The magnetometric method, except when employed in connexion with ellipsoids, for which the demagnetizing factors are [[[Magnetic Measurements]] accurately known, is generally less satisfactory for the exact determination of induction or magnetization than the ballistic method.

du Bois has deduced the corresponding mean demagnetizing factors.

33), the demagnetizing factor, and the ratio of the length of the ellipsoid 2c to its equatorial diameter 2a (c/a), the dimensional ratio, denoted by the symbol nt.

Denoting its mean value by Hti, and that of the demagnetizing factor by N, we have HHo-HtiHo-NI.

Except in the few special cases when a uniform external field produces uniform magnetization, the value of the demagnetizing force cannot be calculated, and an exact determination of the actual magnetic force within the body is therefore impossible.

Synonyms:

demagnetise, erase, delete,

Antonyms:

record, dissimilate, detransitivize, focus,