Let $n_P$ and $n_e$ be the number of holes and conduction electrons respectively in a semiconductor. Then
  • A(a) $n_{P} ! n_e$ in an intrinsic semiconductor
  • B(b) $n_P \quad n_e$ in an extrinsic semiconductor
  • C(c) $n_P \quad n_e$ in an intrinsic semiconductor
  • D(d) $n_{e} ! n_P$ in an intrinsic semiconductor
[MP PET 1995]
art

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