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?

What are the applications of nmr spectroscopy, Q. What are the applications...

Q. What are the applications of nmr spectroscopy? Answer:- The major applications of NMR stereoscopy are the elucidation of the carbon-hydrogen backbone of organic compoun

Determine direction of wire''s motion and magnetic field, The greatest indu...

The greatest induced EMF will occur in a straight wire moving at constant speed through a uniform magnetic field when the angle between the direction of the wire's motion and the d

Explain how a p-n junction functions as a rectifier, Explain physically how...

Explain physically how a p-n junction functions as a rectifier. Ans: When a P-N junction diode is forward-biased and applied voltage is increased from zero, hardly any current

Light, what arethe concepts oflight

what arethe concepts oflight

Input capacitor of single stage amplifier circuit, Input  Capacitor  C in ...

Input  Capacitor  C in An  ac  signal  is  supplied  to  gate  of  the  FET  through  an electrolytic capacitor known as input capacitor C in . This capacitor allows only ac

What is otto cycle, What is Otto Cycle? The cycle of a highly idealized...

What is Otto Cycle? The cycle of a highly idealized gasoline engine can be approximated by the Otto cycle. 1 → 2 and 3 → 4 are adiabatic compression and expansion, respectively

Movement of charge, MOVEMENT OF CHARGE: Although electric current is re...

MOVEMENT OF CHARGE: Although electric current is referred to as the flow of electrons through a conductor, it should be noted that more exactly, any movement of electric charge

Temperature coefficient of resistance, Ask question #Minimum 100 words how ...

Ask question #Minimum 100 words how is temperature coefficient of resistance helpful to mankind?accepted#

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