engineering recuitment BEL Probationary Engineers Mock Test 2025 Electronic Devices Carriers in Semiconductors Extrinsic Fermi Level
In an n-type semiconductor, as the donor concentration ND increases, the Fermi level EF:
1
Remains unaltered
2
Moves towards the conduction band
3
Move towards the center of forbidden energy gap
4
May or may not move depending on temperature