Advertisements
Advertisements
प्रश्न
Draw its I – V characteristics of photodiode
Advertisements
उत्तर
I – V characteristics of photodiode:
APPEARS IN
संबंधित प्रश्न
Explain the working of P-N junction diode in forward and reverse biased mode.
What happens when a forward bias is applied to a p-n junction?
Plot a graph showing variation of current versus voltage for the material GaAs ?
In a photo diode, the conductive increases when the material is exposed to light. It is found that the conductivity changes only if the wavelength is less than 620 nm. What is the band gap?
(Use Planck constant h = 4.14 × 10-15 eV-s, Boltzmann constant k = 8·62 × 10-5 eV/K.)
Answer the following question.
Why photodiodes are required to operate in reverse bias? Explain.
When we apply reverse biased to a junction diode, it
Consider an npn transistor with its base-emitter junction forward biased and collector base junction reverse biased. Which of the following statements are true?
- Electrons crossover from emitter to collector.
- Holes move from base to collector.
- Electrons move from emitter to base.
- Electrons from emitter move out of base without going to the collector.
A Zener of power rating 1 W is to be used as a voltage regulator. If zener has a breakdown of 5 V and it has to regulate voltage which fluctuated between 3 V and 7 V, what should be the value of Rs for safe operation (Figure)?
Differentiate between the threshold voltage and the breakdown voltage for a diode.
Explain the formation of the barrier potential in a p-n junction.
