Physics MCQ on Zener Diode for NEET, JEE, Medical and Engineering Exam 2021
MCQ on Zener Diode: Previous trends reveal that NEET/JEE 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 MCQ on Zener Diode, which will be beneficial for you in upcoming NEET, AIIMS, JEE, WBJEE, Medical and Engineering Exams.
MCQ on Zener Diode
Q1. Depletion region contains _______. (c) Immobile charge carriers
a) Free holes
b) Free electrons
c) Immobile charge carriers
d) All of the above
Q2. A Zener diode when biased correctly _______. (c) Acts as a fixed resistance
a) Never overheats
b) Has a constant voltage across it
c) Acts as a fixed resistance
d) Has a constant current passing through it
Q3. How is the breakdown region set during the manufacturing of the diode? (a) By controlling the size of the diode
a) By controlling the size of the diode
b) By controlling the doping of the diode
c) By managing the biasing of diode
d) All the above
Q4. In a Zener diode with a high breakdown voltage has _______. (a) Lightly doped P and N
a) Lightly doped P and N
b) P or N is lightly doped
c) Heavily doped P and N
d) None of these
Q5. 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 _______.
a) 10 mA (d) 5 mA
b) 15 mA
c) 20 mA
d) 5 mA
Q6. Depletion region behaves as _______. (b) Insulator
a) Semiconductor
b) Insulator
c) Conductor
d) High resistance
Q7. In Zener diode, the Zener breakdown takes place _______. (a) Below 6 V
a) Below 6 V
b) At 6 V
c) Above 6 V
d) None of the above
Q8. In a Zener diode _______. (c) Sharp breakdown occurs at a low reverse voltage
a) Negative resistance characteristic exists
b) Forward voltage rating is high
c) Sharp breakdown occurs at a low reverse voltage
d) All of the above
Q9. Which of the following controls the current in a Zener diode? (d) External circuits
a) Zener diode resistance
b) Potential barrier
c) Reverse bias voltage
d) External circuits
Q10. In Zener diode, the breakdown is due to Zener, has a doping _______. (c) High
a) Lowest
b) Moderate
c) High
d) Low
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By Team Learning Mantras