Advertisements
Advertisements
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.
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
Explain the working of P-N junction diode in forward and reverse biased mode.
Plot a graph showing variation of current versus voltage for the material GaAs ?
Show on a graph, the variation of resistivity with temperature for a typical semiconductor.
In a photo diode, the conductive increases when the material is exposed to light. It is found that the conductivity changes only if the wavelength is less than 620 nm. What is the band gap?
(Use Planck constant h = 4.14 × 10-15 eV-s, Boltzmann constant k = 8·62 × 10-5 eV/K.)
With reference to Semiconductor Physics,
Name the diode that emits spontaneous radiation when forward biased.
Avalanche breakdown is due to ______.
 (a) |
 (b) |
- Name the type of a diode whose characteristics are shown in figure (A) and figure (B).
- What does the point P in figure (A) represent?
- What does the points P and Q in figure (B) represent?
A Zener of power rating 1 W is to be used as a voltage regulator. If zener has a breakdown of 5 V and it has to regulate voltage which fluctuated between 3 V and 7 V, what should be the value of Rs for safe operation (Figure)?
Explain the formation of the barrier potential in a p-n junction.
Draw a labelled characteristic curve (l-V graph) for a semiconductor diode during forward bias.
