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Holes and electrons are ….....

Holes and electrons are …..

A

in the same direction

B

in opposite direction

C

mutually perpendicular

D

towards positive ions

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The correct Answer is:
B
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KUMAR PRAKASHAN-SEMICONDUCTOR ELECTRONICS : MATERIALS, DEVICES AND SIMPLE CIRCUITS -Section-D : Multiple Choice Questions (MCQs) (MCQs From .DARPAN. Based On Textbook)
  1. The density of electron and holes in an intrinsic semiconductor is n( ...

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  2. …… is the charge on hole.

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  3. Holes and electrons are …..

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  4. To prepare the n-type semiconductor from a tetravalent Si or Ge, the i...

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  5. In intrinsic semiconductor the drift velocity of holes and electron a...

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  6. In a semiconducting material the mobilities of electrons and holes are...

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  7. To make a p-type semiconductor out of pure silicon, it has to mix atom...

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  8. p-type semiconductor is formed when …….. (A) As impurity is mixed i...

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  9. Is there any benefit to adding trivalent or pentavalent impurity to th...

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  10. Trivalent and pentavalent impurities are ….., respectively in terms o...

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  11. The ratio of number density of free electron and hole in p-type semico...

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  12. The number density of electron is 4.5xx10^(22)m^(-3) and number densi...

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  13. The number density of electron is 7xx10^(12)m^(-3) and number density ...

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  14. Which of the diagram shown in figure represents variation of total me...

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  15. What is the unit of energy?

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  16. n-type semiconductor ………

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  17. In one atom of As is added per 10^(3) atoms of Ge then the number of f...

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  18. If one Al atom added to 10^(9) per atom of Si then charge on holes in ...

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  19. In pure crystal of silicon at 300 K temperature having number of atom ...

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  20. Therefore are 6xx10^(19) electrons per unit cubic metre of pure semico...

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