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To a germanium sample, traces of gallium...

To a germanium sample, traces of gallium are added as an impurity. The resultant sample would behave like

A

A conductor

B

An-type semiconductor

C

A n-type semiconductor

D

An insulator

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The correct Answer is:
B
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NARAYNA-SEMI CONDUCTOR DEVICES-C.U.Q
  1. The manifestation of band structure in solids is due to

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

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

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  4. In semiconductors at a room temperature

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

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

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

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  8. An electrically neutral semiconductor has

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

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  10. In the insulators

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

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

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  13. The bond in semiconductors is

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  14. On increasing temperature, the conductivity of pure semiconductors

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

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  16. A semiconductor at 0 K behaves as

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

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  18. The valency of impurity element for making p-type semiconductors is

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  19. In n-type semiconductors the electron concentration is equal to

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  20. Which of the following statements is not true ?

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