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why does the electrical conductivity of semiconductors increse with rise in temperature?

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Electrical conductivity of a semiconductor

Electrical conductivity of a semiconductor

The electrical conductivity of semiconductor is

The conductivity of a semiconductor increases with increase in temperature because

The conductivity of a semiconductor increases with increase in temperature because

Assertion (A) : The electrical conductivity of a semiconductor increases with increase in temperature. Reason (R ) : With increase in temperature, large number of electrons from the valence band can jump to the conduction band.

Statement I : Electrical conductivity of semiconductors increases with rise in temperature. Statement II : There is a small energy gap between conduction band and valence band.

MODERN PUBLICATION-SOLID STATE-REVISION EXERCISES (SHORT ANSWER QUESTIONS)
  1. In terms of band theory, what is the difference between a. a condcut...

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  2. Explain the following : (i) Why is Frenkel defect not found in pure...

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

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  4. What are paramagnetism and ferromagnetism ? What type of substances wo...

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  5. How does antiferromagnetism differ from ferromagnetism in terms of mag...

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  6. Explain the following terms : (i) Schottky defects (ii) Frenkel d...

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  7. IMPERFECTIONS IN SOLIDS

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  8. (a) Define ferromagnetism and ferrimagnetism. (b) Differentiate betw...

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

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  10. (i) What is a semiconductor ? Mention two main types of semiconductors...

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  11. (a) Give two differences between ferromagnetic and anti-ferromagnetic ...

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  12. (a) NaCl has fcc structure. Calculate the number of NaCl units in a un...

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  13. What type of semi-conductor is produced when silicon is doped with bor...

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  14. Examine the given defective crystal {:(A^(+), B^(-),A^(+),B^(-),A^(+...

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  15. Explain the following (i) F - centres (ii)Doping .

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  16. Write two points of distinction between crystalline and amorphous soli...

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  17. Distinguish between crystal lattice and unit cell.

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  18. (a) Briefly discuss Schottky defect and give examples. (b) Calculate...

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  19. Define ferromagnetism and ferrimagnetism .

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  20. Unit cells can be divided into two categories, primitive and centred u...

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