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The difference in the variation of resis...

The difference in the variation of resistance with temperature in a metal and a semiconductor arises essentially due to the difference in the

A

crystal structure

B

variation of the number of charge carries with temperature

C

type of bonding

D

variation of scattering mechanism with temperature

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The correct Answer is:
B
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NARAYNA-SEMI CONDUCTOR DEVICES-C.U.Q
  1. Which of the following is not a property of crystalline substance

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  2. A piece of copper and another of germanium are cooled from room temper...

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  3. The difference in the variation of resistance with temperature in a me...

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  4. The manifestation of band structure in solids is due to

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  5. A solid which is not transperent to visible light and whose conductivi...

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  6. To a germanium sample, traces of gallium are added as an impurity. The...

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  7. In semiconductors at a room temperature

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  8. Identify the property which is not characteristic for a semiconductor ...

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  9. Carbon , silicon and germanium have four valence electrons each . At r...

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  10. The relation between number of free electrons (n) in a semiconductor a...

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  11. An electrically neutral semiconductor has

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  12. There is no hole current in conductors because they have

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  13. In the insulators

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  14. In semiconductors the for bidden energy gap between V.B and C.B is of ...

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  15. The level formed due to impurity atom, in the for hidden energy gap, v...

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  16. The bond in semiconductors is

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  17. On increasing temperature, the conductivity of pure semiconductors

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  18. The mobility of free electrons is greater then that of free holes beca...

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  19. A semiconductor at 0 K behaves as

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  20. Carbon , silicon and germanium have four valence elcectrons each . The...

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