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Assertion : On heating ferromagnetic or...

Assertion : On heating ferromagnetic or ferromagnetic substance , they become paramagnetic
Reason :The electrons change their spin on heating

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Assertion : On beating ferromagnetic or ferromagnetic substance , they become paramagnetic Reason The electrons change their spin on heating

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DINESH PUBLICATION-SOLID STATE-ASSIGNMENT
  1. Although pure silicon is an insulator, then how does it behave as semi...

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  2. Ferromagnetic Substances

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  3. Assertion : On heating ferromagnetic or ferromagnetic substance , the...

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  4. With the help of electron spins, clearly distinguish between Ferromagn...

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  5. What do you understand by paramagnetism and diamagnetism ?

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  6. why does the electrical conductivity of semiconductors increse w...

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  7. How are n-type and p-type semiconductors formed ? Give one example in ...

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  8. What types of semi-conductors will be formed when silicon is doped wit...

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  9. What are piezoelectric crystals ? Give their important uses.

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  10. How will you account for the fact that silicon is an insulator but sil...

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  11. Give one example of 1315 compounds.

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  12. Define the term doping. Pure silicon is an insulator. Silicon doped wi...

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  13. What is the magnetic nature of super-conductors?

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  14. How does the electrical conductivity of super- conductors vary with te...

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  15. What types of crystals show pyroelectricity ?

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  16. What is super conductivity ?

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  17. Give one example of peizoelectric substance.

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  18. FERROMAGNETIC SUBSTANCES

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  19. Explain superconductivity.

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  20. At what temperature range most of the metals becomes superconductors

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