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Electronic Devices and Circuits - Engineering

Q1:

Consider the following statements
  1. Acceptor level lies close the valence band.
  2. Donor level lies close to the valence band.
  3. n type semiconductor behaves as an insulator at 0 K.
  4. p type semiconductor behaves as an insulator at 0 K.
Of these statements

A 2 and 3 are correct

B 1 and 3 are correct

C 1 and 4 are correct

D 3 and 4 are correct

ANS:C - 1 and 4 are correct

Both n-type and p-type semiconductors behaves as an insulator.