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NCERT Class 12 - Online Exam Test Papers | NCERT Class 12 - MCQs[multiple choice questions and answers ] | NCERT Class 12 - Mock Test Papers | NCERT Class 12 - Practice Papers | NCERT Class 12 - Sample Test Papers |

Question:
In semi conductor, at room temperature :

1.the valence bond is partially empty and the conduction band is partially filled

2.the valence bond is partially empty and the conduction band is partially filled

3. the valence band is completely filled

4.None of the above

Posted Date:-2021-12-17 11:55:49

More MCQS Questions and answers

  1. A p-type semiconductor is:
  2. Bonds in a semiconductor :
  3. Crystal diode is:
  4. Energy bands in solids are a consequence of:
  5. In a common base amplifier the phase difference between the input signal voltage and output voltage is :
  6. In a p-type semiconductor, current conduction is by:
  7. In binary system III represents:
  8. In full wave rectifier, input a.c. current has a frequency v. The output frequency of current is :
  9. In intrinsic semiconductor at room temperature, the number of electrons and holes are:
  10. In semi conductor which are responsible for conduction:
  11. In semi conductor, at room temperature :
  12. In the middle of the depletion layer of a reverse biased p-n junction, the:
  13. Main function of a transistor is to :
  14. n reverse biasing:
  15. Number of electrons in the valence shell of a semiconductor is:
  16. On applying reverse bias to a junction diode, it:
  17. On heating, resistance of semiconductors:
  18. p-n junction diode can be used as:
  19. Semiconductors of both p-type and n-type are produced by:
  20. The material most commonly used to manufacture electronic solid state devices is :
  21. The part of a transistor which is heavily doped to produce a large number of majority carriers is :
  22. The relation between number of free electrons (n) in a semiconductor and temperature (T) is given by:
  23. To obtain electrons as majority charge carriers in a semiconductors the impurity mixed is:
  24. To obtain p-type silicon semiconductor, we need to dope pure silicon with:
  25. What is the number of possible crystal systems?
  26. Winch of the following gate is not an universal gate?
  27. With fall of temperature, the forbidden energy gap of a semiconductor
  28. Zener diode is used for:
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