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JEE MAIN 2021
25-02-2021 S2
Question
For extrinsic semiconductors; when doping level is increased;
Select the correct option:
A
Fermi-level of p-type semiconductor will go upward and Fermi-level of n-type semiconductors will go downward.
B
Fermi-level of p-type semiconductors will go downward and Fermi-level of n-type semiconductor will go upward.
C
Fermi-level of both p-type and n-type semiconductros will go upward for T > TF K and downward for T < TF K, where TF is Fermi temperature.
D
Fermi-level of p and n-type semiconductors will not be affected.
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
(2) conceptual
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