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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.
Q. What do you eman by Scientific Research? Pure research is prepared to gain knowledge for the sake of knowledge itself. Molina as well as Rowland's research on the behavior
A 75g piece of Ag is heated to 80 degree celcius and drooped into 50g of water at 23.2 degree celcius.The final tempereture of Ag-H2O mixture is 27.6degree celcius.what is the spec
what techniques can you use to separate solute from liquid
Full saturation test
If 4.5 grams of Nitrogen reacted with 2.6 grams of Hydrogen, identify the following: Limiting Reactant- Excess Reactant- and Theoretical Yield:
Krypton ( 36 Kr) has the electronic configuration (18 Ar) 4s 2 , 3d 10 , 4p 6 . The 37 electron will go into which one of the following sub-levels: (1) 4f
name and chemical formula of blue vitriol
What practical applications does amperometry have? may I get elaborated answers supported by relevant examples?
what is chemical properties of p block elements
what topic come under it to explain
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