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In the energy band diagram of a material...

In the energy band diagram of a material shown below, the open circles and filled circles denote holes and electrons respectively. The material is a/an

A

p-type semiconductor

B

insulator

C

metal

D

n-type semiconductor

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Verified by Experts

The correct Answer is:
A
The aluminium atom is called an acceptor atom becuase it readily accepts an electron from a neighbouring bond that is from the valence band of silicon. By adding acceptor atoms, it is possible to increase the number of holes in the valence band.
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NARAYNA-SEMICONDUCTOR ELECTRONICS-EXERCISE -3
  1. In forward biasing of the p-n junction:

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  2. A transistor is operated in common emitter configuration at V(c)=2 V s...

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  3. To get an output y=1 from the circuit shown below, the input must be

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  4. The device that can act as a complete electronic circuit is

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  5. Which one of the following bonds produces a solid that reflects light ...

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  6. Which one of the following statement is false?

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  7. Sodium has body centred packing. Distance between two nearest atoms is...

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  8. The number of beta particles emitter by radioactive sustance is twice ...

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  9. A transistor is operated in common emitter configuration at V(c)=2 V s...

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  10. A p-n photodiode is fabricated from a semiconductor with a band gap of...

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  11. The circuit is equivalent to

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  12. A p-n photodiode is made of a material with a band gap of 2.0 eV. The ...

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  13. The voltage gain of an amplifier with 9% negative feedback is 10. The ...

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  14. In the energy band diagram of a material shown below, the open circles...

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  15. For a cubic crystal structure which one of the following relations ind...

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  16. A common emitter amplifier has a voltage gain of 50, an input impedanc...

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  17. In the following circuit, the output Y for all possible inputs A and B...

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  18. A forward biased diode is

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  19. A transistor is operated in common emitter configuration at constant c...

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  20. The following figure shown a logic gate circuit with ttwo inputs A and...

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