BASIC ELECTRONICS
PN Junction Diode Quiz
1. The ripple factor for a half wave rectifier is
A. 0.5
B. 0.75
C. 1.21
D. 2.0
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C. 1.21
2. The ripple factor for a full wave rectifier is
A. 0.482
B. 0.96
C. 1
D. 1.46
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A. 0.482
3. The electrons in an atom moves in
A. circular orbits
B. hyperbolic orbits
C. elliptical orbits
D. straight lines
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C. elliptical orbits
4. The bulf resistance of a diode is the resistance of
A. P material only
B. N material only
C. P and N materials
D. the resistance of the junction alone.
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C. P and N materials
5. The forbidden energy gap is highest for
A. Silicon
B. Geranium
C. Gallium Arsenide
D. Same in all above
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C. Gallium Arsenide
6. Any semi-conducter material has valance of electrons
A. 4
B. 5
C. 6
D. 7
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A. 4
7. Depletion region in a PN junction diode is due to
A. forward biasing
B. reverse biasing
C. either forward or reverse biasing
D. an area created by doping
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B. reverse biasing
8. Maximum rectification efficiency for a half wave rectifier is
A. 25%
B. 40.6%
C. 50%
D. 66.36%
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B. 40.6%
9. Maximum rectification efficiency for a full wave rectifier is
A. 40.6%
B. 66.4%
C. 81.2%
D. 100%
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C. 81.2%
10. The depletion layer of a PN junction diode hash
A. only free mobile holes
B. only free mobile electrons
C. both free mobile holes and electrons
D. neither free mobile holes nor electrons
Click for answer
D. neither free mobile holes nor electrons
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