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

Comparative study of transtional elements, explain why Ni(co)4 is known whi...

explain why Ni(co)4 is known while Ca(co)4 is not known

..EMF, proper definition plz

proper definition plz

Compute the kerosene - water ratio to remove nicotine, One step in the prep...

One step in the preparation of nicotine sulfate from tobacco is the extraction of nicotine from aqueous solution by kerosene.  The table below shows equilibrium data for the distri

Explain bromination of n-n-dimethylaniline, Explain Bromination of N-N-dime...

Explain Bromination of N-N-dimethylaniline Bromination of N,N-dimethylaniline is faster because nitrogen has an unshared electron pair that can stabilize the carbocation inter

Electrochemistry, how to determine the bond polarity and the potential of t...

how to determine the bond polarity and the potential of the two electrodes given: Eg Ag/Zn

Nomenclature of Spiro compounds, names for : A , B , C , D , E , F ,..........

names for : A , B , C , D , E , F ,..........., X , Y , Z .

Hofmann method - determination of molecular mass, Hofmann Method - Determin...

Hofmann Method - Determination of Molecular Mass The method is applied to those substances that are not stable at their boiling points, but that may be volatilised with no deco

Periodic table, In a period, the element with maximum atomic volume belongs...

In a period, the element with maximum atomic volume belongs to which group?

Which kind of volcano is the most destructive, Which kind of volcano is the...

Which kind of volcano is the most destructive? Well each type of volcano can be very destructive and if you are talking in human loss of life terms than the answer is any type

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