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In the depletion region of an unbiased p...

In the depletion region of an unbiased p-n junction diode there are

A

only holes

B

both electrons and holes

C

only fixed ions

D

none of these

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The correct Answer is:
B
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Which of the following statements concerning the depletion zone of an unbiased p-n junction is (are) true?

NIKITA PUBLICATION-SEMICONDUCTORS-MCQS
  1. In a p-n junction there is no appreciable current if

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  2. When a p-n junction diode is reverse biased

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  3. In the depletion region of an unbiased p-n junction diode there are

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  4. On increases the reverse biase to a large value of in a PN- junction d...

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  5. Applying different potential at the ends of p-n junction , current is ...

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  6. The dominant mechanisms for motion of charge carriers in forward and r...

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  7. Avalanche breakdown is obtained in a p-n junction when there is

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  8. In a p- n junction diode not connected to any circuit,

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  9. The cause of the potential barrier in a p-n diode is:

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  10. A semiconducting device is connected in a series circuit with a batter...

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  11. In a half wave rectifier, the r.m.s value of the A.C. component of the...

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  12. The current obtained from a simple filterless reactifier is

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  13. A rectifier is used to convert

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  14. When two semiconductor of p and n type are brought in to contact, they...

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  15. The diode is also used as

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  16. When out put current is in one direction only, but is continuously var...

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  17. A half-wave rectifier is being used to rectify an alternating voltage ...

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  18. In the diagram, the input is across the terminals A and C and the outp...

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  19. When there is current during only one-half of the A.C. input cycle in ...

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  20. Avalanche breakdown in a semi conductor diode occurs when

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