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

Option: 1

fractional change in majority carriers produce higher forward bias current
 


Option: 2

fractional change in majority carriers produce higher reverse bias current
 


Option: 3

fractional change in minority carriers produce higher forward bias current
 


Option: 4

fractional change in minority carriers produce higher reverse bias current


Answers (1)

best_answer

\rightarrow A photodiode is a special purpose p-n junction diode fabricated with a transparent window to allow light to fall on the diode

\rightarrow It is operated under reverse bias

\rightarrow The fractional change due to the photo-effects on the minority carrier dominated reverse bias current is more easily measurable than the fractional change in the forward bias current.

The correct option is (4)

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vishal kumar

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