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Free download in PDF Semiconductor Diode Short Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams like IIT-JEE, AIIMS etc. These short solved questions or quizzes are provided by Gkseries.
41
A zener diode has ………….. breakdown voltage
[A]
Undefined
[B]
Sharp
[C]
Zero
[D]
none of the above
42
……………. rectifier has the lowest forward resistance
[A]
Solid State
[B]
Vacuum Tube
[C]
Gas Tube
[D]
None Of The Above
43
A 10 V power supply would use …………………. as filter capacitor.
[A]
paper capacitor
[B]
mica capacitor
[C]
electrolytic capacitor
[D]
air capacitor
Answer: electrolytic capacitor
44
A 1,000 V power supply would use ……….. as a filter capacitor
[A]
paper capacitor
[B]
air capacitor
[C]
mica capacitor
[D]
None of the above
45
The ……………….. filter circuit results in the best voltage regulation
[A]
choke input
[B]
capacitor input
[C]
resistance input
[D]
none of the above
46
A half-wave rectifier has an input voltage of 240 V r.m.s. If the step-down transformer has a turns ratio of 8:1, what is the peak load voltage? Ignore diode drop.
[A]
27.5 V
[B]
86.5 V
[C]
30 V
[D]
42.5 V
47
When a crystal diode is used as a rectifier, the most important consideration is ………..
[A]
forward characteristic
[B]
doping level
[C]
reverse characteristic
[D]
PIC rating
48
If the doping level in a crystal diode is increased, the width of depletion layer………..
[A]
remains the same
[B]
is decreased
[C]
in increased
[D]
none of the above
49
A zener diode has ………..
[A]
one pn junction
[B]
two pn junctions
[C]
three pn junctions
[D]
none of the above
50
A zener diode is used as …………….
[A]
an amplifier
[B]
a voltage regulator
[C]
a rectifier
[D]
None Of The Above
Answer: a voltage regulator
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