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The mobility of free electrons is greate...

The mobility of free electrons is greater then that of free holes because

A

they carry negative charge

B

they are light

C

their matual collisions are less

D

they require low energy to continue their motion

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The correct Answer is:
D
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NARAYNA-SEMI CONDUCTOR DEVICES-C.U.Q
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  2. On increasing temperature, the conductivity of pure semiconductors

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

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  4. A semiconductor at 0 K behaves as

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

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

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

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  8. Which of the following statements is not true ?

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  9. p-type semiconductor is

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  10. n-type semiconductor is

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  11. An electric field is applied across a semiconductor. Let n be the numb...

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  12. In a n-type semiconductor, the femi energy level lies

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  13. An n-type and p-type silicon can be obtained by doping pure silicon wi...

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  14. The width of forbidden gap in silicon crystal is 1.2 ev. When the crys...

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  15. In extrinsic semiconductors

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  16. The element that can be used as acceptor impurity to dope silicon is

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  17. Among the following, the wrong statement on the case of semiconductor ...

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

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  19. The conduction band and valency band of a good conductors are

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  20. Two pieces one of germinium and the other of aluminium are cooled from...

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