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The energy gap for an insulator may be...

The energy gap for an insulator may be

A

0.7 eV

B

0.1 MeV

C

1.1 eV

D

5 eV

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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. In a semiconductor, the separation between conduction band and valence...

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  2. The intrinsic semi conductor behaves as insulator at

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  3. The energy gap for an insulator may be

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

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  5. An electric field us applied to a semiconductor.Let the number of char...

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  6. Lets npand ne be the number of holes and conduction electrons in an in...

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

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

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

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

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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 free electron is greater than that of free holes becau...

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  14. Pick out the incorrect statement

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

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  16. Pure semiconductor is known as

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  17. A doped semiconductor is

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  18. The potential barrier, 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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