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प्रश्न
Write the property of a junction diode which makes it suitable for rectification of ac voltages.
Which characteristic property makes the junction diode suitable for rectification?
State the characteristic property of a junction diode that makes it suitable for rectification.
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उत्तर
When a junction diode has an alternating voltage placed across it, only when the diode is forward-biased can current flow. The junction diode's ability to correct alternating current can be used. This is accomplished through the use of a rectifier circuit. It exhibits high resistance when reverse-biased and low resistance when forward-biased.
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संबंधित प्रश्न
(i) Explain with the help of a diagram the formation of depletion region and barrier potential in a pn junction.
In the following diagram, is the junction diode forward biased or reverse biased ?
Why is a zener diode considered as a special purpose semiconductor diode?
Of the diodes shown in the following diagrams, which one is reverse biased?
The drift current in a p-n junction is from the ______.
Depletion layer in p - n junction diode consists of
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.
The graph of potential barrier versus width of depletion region for an unbiased diode is shown in graph A. In comparison to A, graphs B and C are obtained after biasing the diode in different ways. Identify the type of biasing in B and C and justify your answer
| ‘A’ | ‘B’ | ‘C’ |
 |
 |
 |
Answer the following giving reasons:
A p-n junction diode is damaged by a strong current.
An ideal PN junction diode offers ______.
