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

Determine the pressure against the inside walls of the pipe, When a liquid ...

When a liquid moves by a pipe having a varying diameter, the pressure against the inside walls of the pipe will be: a)  The same throughout b)  Lowest where the diameter is

#title.the number of pixels related to the actual phase, #question.i want t...

#question.i want to know the number of pixels related to the actual phase value in an image and want to separate the zero phase valued pixels from the image.

What fraction of the sample will be left over, Q. Tritium has a half life p...

Q. Tritium has a half life period of 12.5 years. What fraction of the sample will be left over after 25 years? HLP = 12.5 years Number of HLPs in 25 years = 25 / 12.5 =2

Project, comparison of magnetic moments using an vibrational magnetometer

comparison of magnetic moments using an vibrational magnetometer

Vectors and scalars, the accelaration of a plane as it takes off would that...

the accelaration of a plane as it takes off would that be a vector or a scalar

Scalar and Vector, how to solve A • B x C = A x B • C?

how to solve A • B x C = A x B • C?

How does the laser printer works, Q. How does the laser printer works? ...

Q. How does the laser printer works? Answer:- When a text or else image is entered into the CPU it produces a series of varying voltages. This manages a LED (light emittin

How we calculate the speed of the water of a river, A boat can travel at a ...

A boat can travel at a speed of 3 m s -1 on still water. A boatman needs to cross a river whilst covering the shortest possible distance. In what direction should he row with resp

Determine same electrons or ion as isoelectronic with co, CO has same elect...

CO has same electrons as or the ion that is isoelectronic with CO is: (1) N + 2                 (b) CN -     (3) O + 2                                (4) O - 2

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