1. Tardigrade
  2. Question
  3. Physics
  4. 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 :

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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 :

JEE MainJEE Main 2021Semiconductor Electronics: Materials Devices and Simple Circuits

Solution:

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