Advertisements
Advertisements
प्रश्न
During the formation of a p-n junction ______.
विकल्प
diffusion current keeps increasing.
drift current remains constant.
both the diffusion current and drift current remain constant.
diffusion current remains almost constant but the drift current increases till both currents become equal.
Advertisements
उत्तर
During the formation of a p-n junction diffusion current remains almost constant but the drift current increases till both currents become equal.
संबंधित प्रश्न
Explain briefly with the help of necessary diagrams, the reverse biasing of a p-n junction diode. Also draw characteristic curves.
Explain, with the help of a circuit diagram, the working of a photo-diode. Write briefly how it is used to detect the optical signals.
Mention the important considerations required while fabricating a p-n junction diode to be used as a Light Emitting Diode (LED). What should be the order of band gap of an LED if it is required to emit light in the visible range?
The drift current in a reverse-biased p-n junction is increased in magnitude if the temperature of the junction is increased. Explain this on the basis of creation of hole-electron pairs.
The drift current in a p-n junction is
Calculate the current through the circuit and the potential difference across the diode shown in figure. The drift current for the diode is 20 µA.

Answer in detail.
Discuss the effect of external voltage on the width of depletion region of a p-n junction.
The depletion layer in the p-n junction diode is caused by ______.
Zener breakdown occurs in a p-n junction having p and n both:
In p-n junction diode ______.
