Explain curie point and hystereris, Chemistry

Assignment Help:

Explain Curie point and hystereris?

An ordinary piece of iron generally has little or no net magnetic moment. Though, if it is placed in a strong enough external magnetic field, domains will re-orient in parallel with that field, and will remain re-oriented when field is turned off, Hence creating a "permanent" magnet. This magnetization as a function of external field is described by a hysteresis curve. However this state of aligned domains isn't a minimal-energy configuration, it's extremely stable and has been observed to persist for millions of years in seafloor magnetite aligned by Earth's magnetic field (whose poles can thereby be seen to flip at long intervals). Net magnetization can be destroyed by heating and then cooling (annealing) the material without an external field, however.

 


Related Discussions:- Explain curie point and hystereris

Combustion reactions, How many moles of octane must be burned to release 52...

How many moles of octane must be burned to release 525.1 kcal ?

Analysis of metabolic components , 1. Produce a figure with an appropriate ...

1. Produce a figure with an appropriate figure legend of your SDS-PAGE gel that could be published in a scientific journal.   Indicate all relevant information, e.g.origin, f

Agar agar, Why agar agar is called as an inert electrolyte?

Why agar agar is called as an inert electrolyte?

Equivalent mass, Equivalent weight of salt how we can find

Equivalent weight of salt how we can find

Combustion analysis, When 3.896 grams of a hydrocarbon, CxHy, were burned i...

When 3.896 grams of a hydrocarbon, CxHy, were burned in a combustion analysis apparatus, 11.40 grams of CO2 and 7.003 grams of H2O were produced. In a separate experiment, the mo

Write essay 5 pages to 6 pages, Hello Dear, my assignment is that I have to...

Hello Dear, my assignment is that I have to write ESSAY 5 pages to 6 pages in Biochemistry calss about technique. after you read the chapter ( the Chapter as attachment) you figure

What is isomerism, Compounds with similar molecular formula but different p...

Compounds with similar molecular formula but different properties are known as Isomers and the phenomenon is known as Isomerism.

Iupac, Ask question i jjjhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh #Minimum 1...

Ask question i jjjhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh #Minimum 100 words accepted#

Show the basic stucture of esters, Q. Show the basic stucture of Esters? ...

Q. Show the basic stucture of Esters? Ans. Esters have the general formula RCOOR'. Both R and R' are alkyl groups. Esters have the ester functional group: Anima

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