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In case of a semi conductor, which one o...

In case of a semi conductor, which one of the following statements is wrong?

A

Resistivity is in between that of a conductor and insulator

B

Temperature coefficient of resistance is negative

C

Doping increases conductivity

D

At absolute zero it behaves as a conductor

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The correct Answer is:
D
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AAKASH SERIES-SEMICONDUCTOR DEVICES-EXERCISE -I (ENERGY BANDS AND CLASSIFICATION OF SOLIDS )
  1. The intrinsic semi conductor behaves as insulator at

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  2. The forbidden energy gap in an insulator is of the order of

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  3. In case of a semi conductor, which one of the following statements is ...

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  4. An electric field is applied to a semiconductor. Let the number of cha...

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  5. Let np, and nc be the numbers of holes and conduction electrons in an ...

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  6. If the two ends of a p-n junction are joined by a wire

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  7. The drift current in a p-n junction is

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  8. The diffusion current in a p - n junction is

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  9. Diffusion current in a p-n junction is greater than the drift current ...

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  10. At absolute zero temperature, a crystal of pure Germanium

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  11. In an intrinsic semiconductor, the fermi energy level lies

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  12. Which of the following statements is not true?

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  13. The mobility of electrons is greater than that of holes. Because they

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  14. Pick out the incorrect statement regarding reverse saturation current ...

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  15. The value indicated by fermi-energy level in an intrinsic semiconducto...

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  16. A pure semi conductor has

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  17. The conductivity of semi conductors like Si or Ge

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  18. A doped semiconductor is

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  19. The potential in the depletion layer is due to

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  20. A hole is

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