Magnetic domains, Physics

Assignment Help:

Ferromagnetic materials get magnetic properties not only because their atoms owns a magnetic moment but also because the material consists of small regions called as magnetic domains. A magnetic domain is a region of the crystal in which all the spin magnetic moments are applied to a magnetic moment in one direction only. This alignment generates as the material creates its crystalline structure during solidification from the molten state. During solidification a million or more atom moments are aligned parallel so that the magnetic force within the domain is strong in one direction. Ferromagnetic materials obtain saturation magnetization in each of the domains without an external magnetic field being applied. Even though the domains are magnetically saturated the bulk material can not demonstrate any signs of magnetism as the domains develop themselves are randomly oriented relative to each other. Ferromagnetic materials turn out to be magnetized when the magnetic domains inside the material are aligned. This can be done by placing the material in the strong external magnetic field or by passing electrical current through the material. Some or the entire domain can become aligned. The more the domains are aligned, the stronger the magnetic field in the material. When the entire domain is aligned, the material said to be magnetically saturated. When a material is magnetically saturated then no extra amount of external magnetization force will make an increase in its internal level of magnetization.

 


Related Discussions:- Magnetic domains

Can you give the condition for dispersion without deviation, Can you give t...

Can you give the condition for dispersion without deviation and illustrate colour has got the maximum angle of deviation?

Determine the distance between two objects, If the distance between two obj...

If the distance between two objects, each of mass 'M', is tripled, the force of attraction between the two objects is: a)  1/2 the original force b)  1/3 the original fo

Microwave, Write an assembly program to make a microwave. Need: 1.    T...

Write an assembly program to make a microwave. Need: 1.    The microwave has a clock (hh:mm:ss am/pm) and the user should be able to alter the clock at any time. 2.    For c

ACTIVITY, IN SUCCESSIVE DISINTEGRATION WHY DOUGHTER ELEMENT NOT DECAY WHEN ...

IN SUCCESSIVE DISINTEGRATION WHY DOUGHTER ELEMENT NOT DECAY WHEN IT FORM BUT DECAY AFTER A FIEW TIME FROM ITS FORMATION

Projectile motion, in some case we take y=-g but in some case we take y=g.....

in some case we take y=-g but in some case we take y=g... why???

The number of unpaired electrons in the fe2+ ion is, The number of unpair...

The number of unpaired electrons in the  Fe2 +   ion is: (1) 0          (2) 4         (3) 6   (4)3 Ans: 4

Describe working of heat engine, Describe working of Heat engine Heat ...

Describe working of Heat engine Heat engine is a device by which a system is made to undergo a cyclic process that results in conversion of heat to work.  * It having of a

How is glass fibre material in optical fibres used, How is glass fibre mate...

How is glass fibre material in optical fibres used? Glass fibre material in optical fibres: Silica is the generally used materials for the manufacture of a glass fibre. The

Explain core type transformers, Core type Transformers:   in this type of t...

Core type Transformers:   in this type of transformer the windings enclose the core (fig .given below).  Both the windings are separated and half of every winding is placed on ever

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