electronic circuits(module 1 and module 2)
Authored by Dr. Mary
Engineering
University
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25 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
The efficiency of a half-wave rectifier is approximately:
40.6%
81.2%
50%
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
In a full-wave rectifier, the frequency of the output ripple is:
Double the input frequency
Half of the input frequency
Equal to the input frequency
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
The ripple factor of a half-wave rectifier is:
1.21
0.707
1.414
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
For a full-wave rectifier with capacitor filter, ripple decreases when:
Capacitance increases
Capacitance decreases
Load resistance decreases
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
A capacitor filter is more effective at:
High load resistance
High load current
Constant load current
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
In a zener voltage regulator, zener diode operates in:
Forward bias
Reverse breakdown region
Reverse saturation region
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
The main purpose of a voltage regulator is to:
Convert AC to DC
Maintain constant output voltage
Reduce ripple
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