Semiconductor Physics MCQ

Que.51 Which one of the following statements is correct?

  • (a) For insulators the band-gap is narrow as compared to semiconductors
  • (b) For insulators the band-gap is relatively wide whereas for semiconductors it is narrow
  • (c) The band-gap is narrow in width for both the insulators and conductors
  • (d) The band-gap is equally wide for both conductors and semiconductors

Answer: (b) For insulators the band-gap is relatively wide whereas for semiconductors it is narrow

Que.52 In an extrinsic semiconductor the conductivity significantly depends upon

  • (a) Majority charge carriers generated due to impurity doping
  • (b) Minority charge carriers generated due to thermal agitation
  • (c) Majority charge carriers generated due to thermal agitation
  • (d) Minority charge carriers generated due to impurity doping

Answer: (a) Majority charge carriers generated due to impurity doping

Que.53 The electrical conductivity of a pure semiconductor is

  • (a) Proportional to temperature
  • (b) Increases exponentially with temperature
  • (c) Decreases exponentially with temperature
  • (d) Not altered with temperature

Answer: (b) Increases exponentially with temperature

Hello friends, my name is Trupal Bhavsar, I am the Writer and Founder of this blog. I am Electronics Engineer(2014 pass out), Currently working as Junior Telecom Officer(B.S.N.L.) also I do Project Development, PCB designing and Teaching of Electronics Subjects.

1 thought on “Semiconductor Physics MCQ”

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