engineering recuitment GATE ECE 2023-24 Test Series Electronic Devices Carriers in Semiconductors Equilibrium Distribution of Electrons and Holes
Which of the following statements for a semiconductor is/are correct?
1
If a semiconductor is in equilibrium then it is in steady-state always.
2
The effective mass of holes is less than that of electrons.
3
The expression \(\mathop \smallint \limits_{{E_c}}^\infty N\left( E \right)f\left( E \right)dE\) gives the energy of electrons in the conduction band.
4
An n-type semiconductor behaves as an intrinsic semiconductor at very high temperatures.