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?

Becquerel, Becquerel; Bq (after A.H. Becquerel, 1852-1908) The derived ...

Becquerel; Bq (after A.H. Becquerel, 1852-1908) The derived SI unit of activity, described as the activity of a radionuclide decreasing at rate, on the average, of one nuclear

Physics of eyes and vision, The sense of vision consist of three major comp...

The sense of vision consist of three major components : The eyes that focus an image from  the outside world on the light sensitive retina The system of millions of nerve

Define normal force (fnorm), What is Normal Force?? Force exerted upon...

What is Normal Force?? Force exerted upon an object that is in get in touch with another stable object. If a book is resting upon a surface, then the surface is exerting an up

Types of rectifier, Types of Rectifier: Half wave Rectifier: The h...

Types of Rectifier: Half wave Rectifier: The half wave rectifier allows positive half cycle of alternating current to pass through the circuit but negative half cycle is s

Compute between force-doubled and reversed , Question: Resultant of two...

Question: Resultant of two forces P & Q is R. If Q is doubled R is doubled while if Q is reversed R is again doubled. Show that P:Q:R=(2) 1/2 :(3) 1/2 :(2) 1/2 .

Uv radiations and x - rays are, UV radiations and  X - rays are: UV r...

UV radiations and  X - rays are: UV radiations are produced by the high energy transitions of the electrons in atoms. UV radiations have wavelengths ranging from 0.4 m m to 1n

Calculate time of immersion of body into the liquid, A streamlined body giv...

A streamlined body given relative density ρ1 falls into air from a height h1 on surface of a liquid of relative density ρ2 where ρ2 > ρ1. find out the time of immersion of body int

Definition of impulse, SECOND DEFINITION OF IMPULSE: It can be describe...

SECOND DEFINITION OF IMPULSE: It can be described as, "The change in momentum produced by the force of impulse".

By which category wave nature of light is demonstrated, The wave nature of ...

The wave nature of light is demonstrated by which of the following a) The photoelectric effect b) Colour c) The speed of light d) Diffraction Ans: The w

Inverse square law of magnetism, State 'Inverse square law of  magnetism'....

State 'Inverse square law of  magnetism'.  A. Coulomb's inverse law of magnetism states that, "The force of attraction or repulsion between two magnetic  poles is directly pro

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