Advertisements
Advertisements
प्रश्न
If a small voltage is applied to a p-n junction diode, how will the barrier potential be affected when it is (i) forward biased
उत्तर
If a small voltage is applied to a p–n junction diode in the forward bias, then the barrier potential decreases.
APPEARS IN
संबंधित प्रश्न
How is a Zener diode fabricated?
With what considerations in view, a photodiode is fabricated? State its working with the help of a suitable diagram.
Even though the current in the forward bias is known to be more than in the reverse bias, yet the photodiode works in reverse bias. What is the reason?
Using the necessary circuit diagrams, show how the V-I characteristics of a p-n junction are obtained in
Forward biasing
How are these characteristics made use of in rectification?
Describe, with the help of a circuit diagram, the working of a photodiode.
Sunil and his parents were travelling to their village in their car. On the way his mother noticed some grey coloured panels installed on the roof of a low building. She enquired from Sunil what those panels were and Sunil told his mother that those were solar panels.
(a) What were the values displayed by Sunil and his mother? State one value for each.
(b) In what way would the use of solar panels prove to be very useful?
(c) Name the semiconductor device used in solar panels. Briefly explain with the help of a diagram, how this device works
Briefly explain its working. Draw its V - I characteristics for two different intensities of illumination ?
Draw the circuit diagram of a full wave rectifier using p-n junction diode.
Explain its working and show the output, input waveforms.
How does a light emitting diode (LED) work? Give two advantages of LED’s over the conventional incandescent lamps.
Explain the formation of depletion layer and potential barrier in a p−n junction.
In Figure, assuming the diodes to be ideal ______.