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Why are photodiodes used preferably in r...

Why are photodiodes used preferably in reverse bias condition?

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Because the fractional change in minority carrier than majority carries in forward bias . Therefore, condition to measure the variation in the current due to change of intensity of light.
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MODERN PUBLICATION-SEMICONDUCTOR ELECTRONICS METERIALS DEVICES AND SIMPLE CIRCUITS -REVISION EXERCISES (VERY SHORT ANSWER QUESTION)
  1. PHOTODIODE

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  2. Draw a p-n junction with reverse bias

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  3. Why are photodiodes used preferably in reverse bias condition?

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  4. Why germainum is preferred to silicon for making seimiconductor dev...

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  5. Name the semiconductor device that can be used to regulate an irregula...

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  6. Compare the working principal of an LEF and a photodiode

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  7. What is dark current

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  8. P-N-P TRANSISTOR

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  9. In a transistor emitter-base junction is always forward biased while t...

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  10. What is the function of base region of a transistor? Why is this regio...

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  11. In a common base transistor what is the phase relationship between inp...

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  12. In a common emitter amplifier , the phase difference between the input...

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  13. Why a common emitter amplifer is preferred toa common base amplifi...

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  14. In n-p-n transistor, what are the current carriers inside and outside ...

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  15. In n-p-n transistor, what are the current carriers inside and outside ...

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  16. Derive a relation between current gain of common emitter amplifier.

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  17. State the relation for the voltage gain in terms of trans-conductance,...

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  18. What will be the total voltage amplification factor when three ampli...

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  19. Name a semiconductor device which can be used as a voltage regulator

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  20. Why transistor can not be used as rectifier?

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