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QJEEM21Ph81c6: JEE Main 2021 Physics - Class 12 JEEM21Ph81c6 Solution: Statement I : By doping silicon semiconductor with pentavalent…

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 :

Multiple Choice Options

  • 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.

Step-by-Step Verified Solution

Pentavalent activities have excess free e −- , so e −- density increases but overall semiconductor is neutral.

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