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The probability of electrons to be found in the conduction band of an intrinsic semiconductor at a finite temperature
  • a)
    increases exponentially with increasing band gap
  • b)
    decreases exponentially with increasing band gap
  • c)
    decreases with increasing temperature
  • d)
    is independent of the temperature and the band gap
Correct answer is option 'B'. Can you explain this answer?
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The probability of electrons to be found in the conduction band of an ...
KEY CONCEPT : For a semi conductor n = n0e–Eg/kT where n0 = no. of free electrons at absolute zero, n = no. of free electrons at T kelvin, Eg = Energy gap, k = Boltzmann constant.
As Eg increases, n decreases exponentially.
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The probability of electrons to be found in the conduction band of an ...
Option B is correct...
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The probability of electrons to be found in the conduction band of an ...
B,but how
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The probability of electrons to be found in the conduction band of an intrinsic semiconductor at a finite temperaturea)increases exponentially with increasing band gapb)decreases exponentially with increasing band gapc)decreases with increasing temperatured)is independent of the temperature and the band gapCorrect answer is option 'B'. Can you explain this answer?
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