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In semiconductors at a room temperature...

In semiconductors at a room temperature

A

The valence band is partially empty and the conduction band is partially filled

B

The valence band is completely filled and the conduction band is partially filled

C

The valence band is completely fille

D

The conduction band is completely empty

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The correct Answer is:
A
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AAKASH INSTITUTE ENGLISH-SEMICONDUCTOR ELECTRONICS (MATERIAL, DEVICES AND SIMPLE CIRUITS )-Assignment section -C (Previous years type question)
  1. Copper has face-centered cubic (fcc) lattice with interatomic spacing ...

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  2. The cations and anions are arranged n alternate form in:

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  3. In semiconductors at a room temperature

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  4. In good conductors of electricity the type of bonding that exist is

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  5. In an insulator, the forbidden energy gap between the valence band and...

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  6. In a p-n junction depletion region has a thickness of the order of

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  7. Pure Si at 300 K has equal electron (n(e)) and hole (n(h)) concentrati...

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  8. In a reverse biased p-n junction, when the applied bias voltages is eq...

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  9. In the case of forward biasing of PN-junction, which one of the follow...

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  10. When arsenic is added as an impurity to silicon, the resulting materia...

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  11. To obtain a p-type germanium semiconductor, it must be doped with

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

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  13. A semiconducting device is connected in a series in circuit with a bat...

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  14. p-n junction diode can be used as

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  15. In p-type semiconductor, the major charge carriers are:

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  16. In forward bias the width of depletion layer in a p-n junction diode

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  17. Depletion layer consists of

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  18. In a junction diode, the holes are due to

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  19. In a PN junction : -

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  20. For the given circuit of P-N junction diode which is correct : -

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