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प्रश्न
Draw its I – V characteristics of photodiode
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उत्तर
I – V characteristics of photodiode:
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संबंधित प्रश्न
The gain factor of an amplifier in increased from 10 to 12 as the load resistance is changed from 4 kΩ to 8 kΩ. Calculate (a) the amplification factor and (b) the plate resistance.
With reference to Semiconductor Physics,
Name the diode that emits spontaneous radiation when forward biased.
Of the diodes shown in the following diagrams, which one is reverse biased?
A – pn junction has a depletion layer of thickness .of the order of
The expected energy of the electron at absolute zero is called:-
When an electric field is applied across a semiconductor ______.
- electrons move from lower energy level to higher energy level in the conduction band.
- electrons move from higher energy level to lower energy level in the conduction band.
- holes in the valence band move from higher energy level to lower energy level.
- holes in the valence band move from lower energy level to higher energy level.
In the depletion region of a diode ______.
- there are no mobile charges.
- equal number of holes and electrons exist, making the region neutral.
- recombination of holes and electrons has taken place.
- immobile charged ions exist.
The breakdown in a reverse biased p–n junction diode is more likely to occur due to ______.
- large velocity of the minority charge carriers if the doping concentration is small.
- large velocity of the minority charge carriers if the doping concentration is large.
- strong electric field in a depletion region if the doping concentration is small.
- strong electric field in the depletion region if the doping concentration is large.
Differentiate between the threshold voltage and the breakdown voltage for a diode.
Draw a labelled characteristic curve (l-V graph) for a semiconductor diode during forward bias.
