What is magnetostriction?, Physics

Assignment Help:

 

If we have to strain a ferromagnetic crystal along certain direction, we would change the inter atomic spacing not only along this direction but also in other direction. And hence the exchange interactions between the atomic spins are also changed. This would lead to a change in the magnetization property of crystal. When an iron crystal is placed in a magnetic field along an easy direction, it gets longer along this direction but contracts in the transverse directions. The longitudinal strain $l/l along the direction of magnetization is called magnetostriction constant denoted by λ. When the crystal reaches saturation magnetization, λ also reaches saturation called saturation strain. The crystal lattice strain energy associated with magnetostriction is called magnetostrictive energy. Magnetostriction is responsible for transformer hum noise.


Related Discussions:- What is magnetostriction?

Explain why does heated air expand, Q. Explain why does heated air expand? ...

Q. Explain why does heated air expand? Answer:- Temperature is habitually defined as the average thermal energy of the substance at hand. Therefore the hotter a substance

Electronics, define capacitor filter briefly?

define capacitor filter briefly?

4, #question.5.

#question.5.

Destructive interference of the reflected light, It is desired to lessen th...

It is desired to lessen the reflection of light by the outer surfaces of the objective lenses of a pair of binoculars. These surfaces are the foremost surfaces that light hits on e

Semi-conductors, Semiconductor is solid material whose electrical conductiv...

Semiconductor is solid material whose electrical conductivity at room temperature lies between conductivity of a conductor and that of an insulator. At high temperatures its conduc

To find current, Determine the unknown values in the following ta : ( s...

Determine the unknown values in the following ta : ( solve problems to find current, voltage, resistance  or power using ohm's law )

Electrical Symbols, how does electrical symbols positively affects in our E...

how does electrical symbols positively affects in our Electrical subjects

why the vectors do not divide?, Actually vectors are divisible but not dir...

Actually vectors are divisible but not directly. A vector is multiplied by the inverse of the vector to be divided.In other way, its magnitude an be divided and multiplied by a uni

Dc ammeter, Why dc ammeter cant read ac current

Why dc ammeter cant read ac current

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd