Define "Magneto-striction"? State the causes for loss of magnetism.

Define "Magneto-striction"? State the causes for loss of magnetism.
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1 Answer

Answer :

Magneto-striction:

 Magneto-striction is the change in dimensions of ferromagnetic material, when it is magnetized

Following are the causes for loss of magnetism: 

1. Heating effect: Beyond a certain temperature i.e. curie temperature it destroys the polarization of the material i.e loss of magnetization

2. Sharp impact: Due to any impact on magnetic material changes its magnetization properties.

3. Due to Stray magnetic field: it cancels the magnetic domains and the magnetism will be weak.

4. Due to mechanical Process: Due to punching, cutting, drilling and machining loss of magnetism is possible.

5. Due to Ageing: Loss of Magnetism is possible. 
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