|The intrinsic semiconductor is extremely pure semiconductor.
||The extrinsic semiconductor is impure semiconductor.
|Electrical conductivity of intrinsic semiconductors is poor.
||The electrical conductivity of extrinsic semiconductor is large.
|The number of electron and holes produced due to the thermal energy are equal.
||The number of electron and holes produced due to the thermal energy are not equal.
|The current conduction is due to electrons and holes.
||The current conduction is due to either holes or electrons.
|The Fermi level is at the centre of forbidden energy gap and is unchanged with change in temperature.
||The Fermi level is shifts upward or downward with change in temperature.