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Discussion

If the temperature of an extrinsic semiconductor is increased so that the intrinsic carrier concentration is doubled, then

  • A.the majority carrier density is doubled
  • B.the minority carrier density is doubled
  • C.the minority carrier density becomes 4 times the original value
  • D.both the majority and minority carrier densities double

Answer: D

As the intrinsic carrier concentration is doubled, the concentration of both electrons and holes is doubled.

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