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Physics
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Class 12
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Zener Diode
Zener Diode
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1)
The value of reverse current after the zener breakdown is called?
Zener current
Reverse current
Direct current
Forward current
2)
A junction diode which can operate in the reverse breakdown voltage region is called?
Schottky diode
Zener diode
Varactor diode
Tunnel diode
3)
Which of these is the best description of a Zener diode?
It is a constant electric current device.
It is a rectifier diode.
It is a constant voltage device.
It works in the forward region.
4)
What is true about the breakdown voltage in a Zener diode?
It equals the electric current times the resistance.
It is approximately constant.
It decreases when electric current increases.
It destroys the diode.
5)
The load voltage is approximately constant when a Zener diode is _______.
forward biased.
operating in breakdown region.
reverse biased.
unbiased.
6)
If the load resistance increases in a Zener regulator, the Zener current _______.
equals the source voltage divided by series resistance.
stays the same.
increases.
decreases.
7)
A Zener diode is based on the principle of:
Thermionic emission.
Tunneling of charge carriers across the junction.
Diffusion of charge carriers across the junction.
None of the above.
8)
Zener diodes are:
None of the above.
Specially doped p–n junctions.
Normally doped p–n junctions.
Lightly doped p–n junctions.
9)
Which one of the following materials is usually used to make a Zener diode:
Carbon
Silicon
Sodium
Magnesium
Cite this Simulator:
amrita.olabs.edu.in,. (2011). Zener Diode. Retrieved 21 May 2022, from amrita.olabs.edu.in/?sub=1&brch=6&sim=24&cnt=41
