Magnetostriction
[mag-nee-toh-strik-shuh n] /mægˌni toʊˈstrɪk ʃən/
noun, Physics.
1.
a change in dimensions exhibited by ferromagnetic materials when subjected to a magnetic field.
/mæɡˌniːtəʊˈstrɪkʃən/
noun
1.
a change in dimensions of a ferromagnetic material that is subjected to a magnetic field
magnetostriction
(māg-nē’tō-rĭ-strĭk’shən)
The change in shape and density of a substance, especially a ferromagnetic substance, when exposed to a magnetic field. The change depends on the direction and strength of the magnetic field. Rapid, alternating magnetostriction causes the iron cores of household transformers, which are subject to a changing magnetic field, to hum or buzz.
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