Multiple choice

In a p-n junction, to make the depletion region extend prominently into p-region, the concentration of impurities in the p-region must be

  1. Much less than the concentration of impurities in n-region

  2. Much higher than the concentration of impurities in n-region

  3. Equal to the concentration of impurities in n-region

  4. Zero

  5. None of these

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Depletion width is inversely proportional to the concentration.