Electronic Devices — JEE Main 2021 · 25 Feb, Evening shift · Q6873

Question

For extrinsic semiconductors; when doping level is increased;

Accepted Answer

(D) Fermi-level of p-type semiconductors will go downward and Fermi-level of n-type semiconductor will go upward.

Answer

(A) Fermi-level of both p-type and n-type semiconductors will go upward for T > T F K and downward for T < T F K, where T F is Fermi temperature.

Answer

(B) Fermi-level of p-type semiconductor will go upward and Fermi-level of n-type semiconductors will go downward

Answer

(C) Fermi-level of p and n-type semiconductors will not be affected.

Electronic Devices: JEE Main 2021 Physics question