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QJEEM22Ph8f8a: JEE Main 2022 Physics - Class 12 JEEM22Ph8f8a Solution: The photodiode is used to detect the optical signals. These…

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

Multiple Choice Options

  • A fractional change in majority carriers produce higher forward bias current
  • B fractional change in majority carriers produce higher reverse bias current
  • C fractional change in minority carriers produce higher forward bias current
  • D fractional change in minority carriers produce higher reverse bias current

Step-by-Step Verified Solution

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.

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