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प्रश्न
Why is a zener diode considered as a special purpose semiconductor diode?
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उत्तर
Zener diode works only in reverse breakdown region that’s why it in considered as a special purpose semiconductor.
संबंधित प्रश्न
With reference to semiconductor devices, define a p-type semiconductor and a Zener diode.
Draw a labelled diagram of a full wave rectifier. Show how output voltage varies with time if the input voltage is a sinusoidal voltage.
Plot a graph showing variation of current versus voltage for the material GaAs ?
On increasing the reverse biases voltage to a large value in a P – N junction diode-current
Avalanche breakdown is due to ______.
In the depletion region of a diode ______.
- there are no mobile charges.
- equal number of holes and electrons exist, making the region neutral.
- recombination of holes and electrons has taken place.
- immobile charged ions exist.
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)?
Answer the following giving reasons:
A p-n junction diode is damaged by a strong current.
With reference to a semiconductor diode, define the potential barrier.
An ideal PN junction diode offers ______.
