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प्रश्न
What is the use of Zener diode?
उत्तर
Zener diode is used to stabilize voltage in the circuit.
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संबंधित प्रश्न
What happens when a forward bias is applied to a p-n junction?
What causes the setting up of high electric field even for small reverse bias voltage across the diode?
In the following diagram 'S' is a semiconductor. Would you increase or decrease the value of R to keep the reading of the ammeter A constant when S is heated? Give reason for your answer.
Of the diodes shown in the following diagrams, which one is reverse biased?
In forward bias width of potential barrier in a p + n junction diode
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.
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.
Draw V-I characteristics of a p-n Junction diode.
Differentiate between the threshold voltage and the breakdown voltage for a diode.
Explain the formation of the barrier potential in a p-n junction.
