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Semiconductor Diode MCQs | Semiconductor Diode Short Questions and Answers

Questions
41 A zener diode has ………….. breakdown voltage
A Undefined
B Sharp
C Zero
D none of the above

Answer: Sharp
42 ……………. rectifier has the lowest forward resistance
A Solid State
B Vacuum Tube
C Gas Tube
D None Of The Above

Answer: Solid State
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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

Answer: paper capacitor
45 The ……………….. filter circuit results in the best voltage regulation
A choke input
B capacitor input
C resistance input
D none of the above

Answer: choke input
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

Answer: 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

Answer: 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

Answer: in increased
49 A zener diode has ………..
A one pn junction
B two pn junctions
C three pn junctions
D none of the above

Answer: one pn junction
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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