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?

Truck and the ball- vectors and projectiles, Truck and The Ball Suppose...

Truck and The Ball Suppose a pickup truck moving along with a constant speed along a city street. Within the course of its motion, a ball is projected straight upwards through

Calculate the speed and frequency of elctromagnetic wave, Imagine an elctro...

Imagine an elctromagnetic wave propagating vacuum with electric field Ex=10 2 sinπ(3x10 6 z - 9x10 14 t) V/m, E y =0, E z = 0. Calculate the speed, frequency, wavelength, initial

Evaluate the minimum value of h in terms of r, A sled slides down a frictio...

A sled slides down a frictionless track and loops the loop without falling off. What is the minimum value of h  in terms of  r ? The only other information given is that the an

Special resistor materials: platinum, Platinum: Atomic numb...

Platinum: Atomic number 78 Symbol p t Atomic weight 195.09 Discovery Olloa 1735

Beer lambert''s law, what is meant by positive deviation of beer lambert''s...

what is meant by positive deviation of beer lambert''s low?

Series in place of the original capacitor, Regard as a capacitor which is c...

Regard as a capacitor which is charged to 12 volts and then connected across a resistor. Allow t1/2 be the time it takes for the voltage to drop down to 6 volts. Presume the experi

What is the strength of the magnetic field, A proton with a velocity of 3.9...

A proton with a velocity of 3.98 x 10 4 m/s perpendicular to the direction of a magnetic field follows a circular path with a diameter of 4.12 cm. If the mass of a proton is 1.

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