Multiple choice

The electron and hole concentrations in an intrinsic semiconductor are ni per cm3 at 300 K. Now, if acceptor impurities are introduced with a concentration of NA per cm3 where (where NA >> ni), the electron concentration per cm3 at 300 K will be

  1. ni

  2. ni + NA

  3. NA - ni
  4. $\dfrac{n^2i}{N_A}$
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D Correct answer
Explanation

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