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Match the following for the relevant relations ( array |c|l|c|l| & Column I & & Column II a & n-type semiconductor & q & n_e n_h b & p-type semiconductor & r & n_e n_h c & Intrinsic semiconductor & p & n_e = n_h d & Extrinsic semiconductor & s & n_e n_h array )

Options

  1. Aa-p b-r c-s d-q
  2. Ba-p b-s c-r d-q
  3. Ca-q b-r c-s d-p
  4. Da-q b-r c-p d-s

Correct answer

D. a-q b-r c-p d-s

Step-by-step solution

In (n ) type semiconductors, doped with excess electron element(Group 5) so there is excess of electrons and negligible number of holes. In p type semiconductors, doped with deficient electron element(Group 3) there is excess of holes and negligible number of electrons. In intrinsic semiconductors there is no doping therefore electron= holes In extrinsic semiconductors there is doping so either of electron or holes is in excess.

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