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An electric field is applied to a semico...

An electric field is applied to a semiconductor. Let the number of charge carriers be n and the average drift speed be v. If the temperature is increased,

A

both n and v will increase

B

n will increase but v will decrease

C

v will increase but n will decrease

D

both n and v will decrease

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The correct Answer is:
B
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AAKASH SERIES-SEMICONDUCTOR DEVICES-EXERCISE -I (ENERGY BANDS AND CLASSIFICATION OF SOLIDS )
  1. The forbidden energy gap in an insulator is of the order of

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

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

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

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

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

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

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

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

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

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  11. Which of the following statements is not true?

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

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

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

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  15. A pure semi conductor has

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  16. The conductivity of semi conductors like Si or Ge

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  17. A doped semiconductor is

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  18. The potential in the depletion layer is due to

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  19. A hole is

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  20. The donor impurity to be added for doping germanium crystal, will be o...

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