Medium MCQ +4 / -1 PYQ · JEE Mains 2022

The photodiode is used to detect the optical signals. These diodes are preferably operated in reverse biased mode because :

  1. A fractional change in majority carriers produce higher forward bias current
  2. B fractional change in majority carriers produce higher reverse bias current
  3. C fractional change in minority carriers produce higher forward bias current
  4. D fractional change in minority carriers produce higher reverse bias current Correct answer

Solution

<p>A photodiode is reverse biased. When light falling on it produces charge carriers, the fractional change, in minority carriers is high since the original current is very small.</p>

About this question

Subject: Physics · Chapter: Electronic Devices · Topic: p-n Junction Diode

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