Statement-I: By doping silicon semiconductor with pentavalent material, the electrons density increases. Statement-II: The n-type semiconductor has net negative charge. In the light of the above statements, choose the most appropriate answer from the options given below :

Question

Statement-I: By doping silicon semiconductor with pentavalent material, the electrons density increases. Statement-II: The n-type semiconductor has net negative charge. In the light of the above statements, choose the most appropriate answer from the options given below : (A) Statement-I is true but Statement-II is false. (B) Statement-I is false but Statement-II is true. (C) Both Statement-I and Statement-II are true. (D) Both Statement-I and Statement-II are false.

Tardigrade Admin · Accepted Answer

Pentavalent activities have excess free e - So e -density increases but overall semiconductor is neutral.

Q. Statement-I : By doping silicon semiconductor with pentavalent material, the electrons density increases.
Statement-II : The n-type semiconductor has net negative charge. In the light of the above statements, choose the most appropriate answer from the options given below :

Statement-I is true but Statement-II is false.

Statement-I is false but Statement-II is true.

Both Statement-I and Statement-II are true.

Both Statement-I and Statement-II are false.

Pentavalent activities have excess free $e^{-}$
So $e^{-}$ density increases but overall semiconductor is neutral.

Q. Statement-I : By doping silicon semiconductor with pentavalent material, the electrons density increases. Statement-II : The n-type semiconductor has net negative charge. In the light of the above statements, choose the most appropriate answer from the options given below :