Solve this following


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:

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

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

  3. Both Statement-I and Statement-II are true.

  4. Both Statement-I and Statement-II are false.

Correct Option: 1


Pentavalent activities have excess free $\mathrm{e}^{-}$

So $\mathrm{e}^{-}$density increases but overall semiconductor is neutral.

Option (1)

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