railway DFCCIL Executive 2025 Mock Test Electronic Devices Semiconductors The Fermi Dirac Probability Function
In an extrinsic semiconductor, the donor level is created between conduction band and valance band by doping __________
1
trivalent impurity in intrinsic semiconductor
2
p-type impurity in intrinsic semiconductor
3
n-type impurity in intrinsic semiconductor
4
either p-type or n-type impurity in intrinsic semiconductor