Multiple choice

In an n-type silicon crystal at room temperature, which of the following can have a concentration of 4 x1019 cm-3?

  1. Silicon atoms

  2. Holes

  3. Dopant atoms

  4. Valence electrons
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Only dopant atoms can have concentration of 4 x 1019 cm -3 in n −type silicon at room temperature.

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