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Worksheetszener diode quiz
Total questions: 10
Worksheet time: 10mins
Zener diodes are also known as
a) Voltage regulators
b) Forward bias diode
c) Breakdown diode
d) None of the mentioned
Which of the following is true about the resistance of a Zener diode?
a) It has an incremental resistance
b) It has dynamic resistance
c) The value of the resistance is the inverse of the slope of the i-v characteristics of the Zener diode
d) All of the mentioned
Which of the following is true about the temperature coefficient or TC of the Zener diode?
a) For Zener voltage less than 5V, TC is negative
b) For Zener voltage around 5V, TC can be made zero
c) For higher values of Zener voltage, TC is positive
d) All of the mentioned
In the circuit, what is the output voltage?
a) 50 V
b) 70 V
c) 120 V
d) 170 V
Which of the following is the correct symbol for the zener diode?
The depletion region of the Zener diode is ____________
a) Thick
b) Normal
c) Very Thin
d) Very thick
In the breakdown region, a zener diode behaves like a …………… source.
constant voltage
constant current
constant resistance
none of the above
The maximum efficiency of a half-wave rectifier is ………………..
40.6 %
81.2 %
50 %
25 %
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
10 mA
15 mA
20 mA
5 mA
Depletion region behaves as
Semiconductor
Insulator
Conductor
High resistance
