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Semiconductor A has a higher band-gap than semiconductor B. If both A and B have the same electron and hole mobilities then
  • a)
    A has the same number of holes as B
  • b)
    A has larger number of holes than B
  • c)
    A has lesser number of holes than B
  • d)
    Any of the above statements A, B, C could be true
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Semiconductor A has a higher band-gap than semiconductor B. If both A ...
We have, intrinsic carrier concentration, 
ηi∞e-Eg/2kT
And, hole concentration (by mass action law) is, p=ni2/n
⇒∞e-Eg/2kT
Thus, EgA>EgB
⇒p< pB
Hence, hole concentration in semiconductor A is less than that of B.
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Semiconductor A has a higher band-gap than semiconductor B. If both A and B have the same electron and hole mobilities thena)A has the same number of holes as Bb)A has larger number of holes than Bc)A has lesser number of holes than Bd)Any of the above statements A, B, C could be trueCorrect answer is option 'C'. Can you explain this answer?
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Semiconductor A has a higher band-gap than semiconductor B. If both A and B have the same electron and hole mobilities thena)A has the same number of holes as Bb)A has larger number of holes than Bc)A has lesser number of holes than Bd)Any of the above statements A, B, C could be trueCorrect answer is option 'C'. Can you explain this answer? for SSC 2024 is part of SSC preparation. The Question and answers have been prepared according to the SSC exam syllabus. Information about Semiconductor A has a higher band-gap than semiconductor B. If both A and B have the same electron and hole mobilities thena)A has the same number of holes as Bb)A has larger number of holes than Bc)A has lesser number of holes than Bd)Any of the above statements A, B, C could be trueCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for SSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Semiconductor A has a higher band-gap than semiconductor B. If both A and B have the same electron and hole mobilities thena)A has the same number of holes as Bb)A has larger number of holes than Bc)A has lesser number of holes than Bd)Any of the above statements A, B, C could be trueCorrect answer is option 'C'. Can you explain this answer?.
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