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.Management Sciences
Category: Regulated D.C. Power Supply
When load current is zero, the Zener current will be_____________?
0
A. Zero
B. Minimum
C. Maximum
D. None of the above
If the load current drawn by unregulated power supply increases, the d.c. output voltage______________?
A. Increases
B. Decreases
C. Stays the same
D. None of the above
A Zener diode is used as a _____________voltage regulating device?
A. Shunt
B. Series
C. Series-shunt
D. None of the above
Which of these is the best description for a Zener diode ?
A. It is a diode
B. It is a constant current device
C. It is a constant-voltage device
D. It works in the forward region
In a Zener voltage regulator, the changes in load current produce changes in _________________?
A. Zener current
B. Zener voltage
C. Zener voltage as well as Zener current
D. None of the above
In an unregulated power supply, if load current increases, the output voltage _____________?
A. Remains the same
B. Decreases
C. Increases
D. None of the above
A power supply which has voltage regulation of ____________ is unregulated power supply?
A. 0 %
B. 5 %
C. 10 %
D. 8%
A Zener diode utilises_____________characteristic for voltage regulation?
A. Forward
B. Reverse
C. Both forward and reverse
D. None of the above
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