the change of length or shape of a ferromagnetic material when it is magnetized
Magnetostriction is a property of ferromagnetic materials that causes them to change their shape or dimensions during the process of magnetization. The variation of materials's magnetization due to the applied magnetic field changes the magnetostrictive strain until reaching its saturation value, λ. The effect was first identified in 1842 by James Joule when observing a sample of iron. This effect causes losses due to frictional heating in susceptible ferromagnetic cores. The effect is also responsible for the low-pitched buzzing sound that can be heard near transformers on alternating current carrying pylons.
The numerical value of magnetostriction in Chaldean Numerology is: 5
The numerical value of magnetostriction in Pythagorean Numerology is: 4
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"magnetostriction." Definitions.net. STANDS4 LLC, 2017. Web. 13 Dec. 2017. <http://www.definitions.net/definition/magnetostriction>.