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.Management Sciences
Category: Semiconductor Diode
A zener diode is always_______________ connected?
0
A. reverse
B. forward
C. either reverse or forward
D. none of the above
A 10 V power supply would use ____________ as filter capacitor?
A. paper capacitor
B. mica capacitor
C. electrolytic capacitor
D. air capacitor
The disadvantage of a half-wave rectifier is that the__________________?
A. components are expensive
B. diodes must have a higher power rating
C. output is difficult to filter
D. none of the above
A zener diode utilizes ______________ characteristics for its operation?
A. forward
B. reverse
C. both forward and reverse
D. none of the above
If the doping level of a crystal diode is increased, the breakdown voltage__________________?
A. remains the same
B. is increased
C. is decreased
D. none of the above
Mains a.c. power is converrted into d.c. power for_________________?
A. lighting purposes
B. heaters
C. using in electronic equipment
D. none of the above
The maximum efficiency of a half-wave rectifier is _____________?
A. 40.6 %
B. 81.2 %
C. 50 %
D. 25 %
A zener diode has ______________ breakdown voltage?
A. undefined
B. sharp
C. zero
D. none of the above
A crystal diode utilises …………….. characteristic for rectification
A. reverse
B. forward
C. forward or reverse
D. none of the above
The doping level in a zener diode is______________ that of a crystal diode?
A. the same as
B. less than
C. more than
D. none of the above
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