Physics Quiz on Zener Diode for IIT JEE, NEET, Medical & Engineering Exam

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Physics Quiz on Zener Diode
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Physics Quiz on Zener Diode

Physics Quiz on Zener Diode: Previous trends reveal that NEET aspirants find Physics as the most challenging section amongst the other sections. But most of them fail to decipher the reason behind this. This particularly can be as the candidates taking up this examination are predominantly medical aspirants with their subject of interest being Biology. Also, sections like Physics are more on theories, laws, numerical as opposed to Biology which is more of fact-based, life sciences and comprising of substantial explanations. In this post we are providing you Physics quiz on Zener Diode.

Physics Quiz on Zener Diode

 

Q1. A Zener diode is biased correctly when _________
a) Never overheats
b) Has a constant voltage across it
c) Acts as a fixed resistance
d) Has a constant current passing through it

View Answer

b) Has a constant voltage across it

Q2. In a Zener diode _______.
a) Sharp breakdown occurs at a low reverse voltage
b) Negative resistance characteristic exists
c) Forward voltage rating is high
d) All of the above

View Answer

a) Sharp breakdown occurs at a low reverse voltage

Q3. How is the breakdown region set during the manufacturing of the diode?
a) By controlling the size of the diode
b) By managing the biasing of diode
c) By controlling the doping of the diode
d) All the above

View Answer

a) By controlling the size of the diode

Q4. Depletion region contains _______.
a) Free holes
b) Free electrons
c) Immobile charge carriers
d) All of the above

View Answer

c) Immobile charge carriers

Q5. In a Zener diode with a high breakdown voltage has ______.
a) Lightly doped P and N
b) P or N is lightly doped
c) Heavily doped P and N
d) None of these

View Answer

a) Lightly doped P and N

Q6. Depletion region behaves as _____.
a) Semiconductor
b) Insulator
c) Conductor
d) High resistance

View Answer

b) Insulator

Q7. Which of the following controls the current in a Zener diode?
a) Zener diode resistance
b) Potential barrier
c) Reverse bias voltage
d) External circuits

View Answer

 

Q8. A Zener diode, having breakdown voltage equal to 15 V, is used in a voltage regulator circuit shown in the figure. The current through the diode is _______.

Zener diodea) 5 mA
b) 10 mA
c) 15 mA
d) 20 mA

View Answer

a) 5 mA

Q9. In Zener diode, the breakdown is due to Zener, has a doping _______.
a) Lowest
b) High
c) Low
d) Moderate

View Answer

b) High

Q10. In Zener diode, the Zener breakdown takes place _______.
a) Below 6 V
b) At 6 V
c) Above 6 V
d) None of the above

View Answer

a) Below 6 V

 



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