Why a photodiode is operated in reverse bias

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

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1. A.
   $A$ is true but $R$ is false
2. B.
   $A$ is false but $R$ is true
3. C.
   Both $A$ and $R$ are true and $R$ is the correct explanation of $A$
4. D.
   Both $A$ and $R$ are true but $R$ is NOT the correct explanation of $A$

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1. A.
   Both $A$ and $R$ are true and $R$ is correct explanation $A$
2. B.
   $A$ is false but $R$ is true
3. C.
   Both A and R are true but R is NOT the correct explanation A
4. D.
   $A$ is true but $R$ is false

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