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. Increases
B. Decreases
C. Stays the same
D. None of the above
A. Series current
B. Zener current
C. Load current
D. None of the above
In a loaded Zener regulator, which is the largest Zener current ? Read More »
Regulated D.C. Power Supply 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
Which of these is the best description for a Zener diode ? Read More »
Regulated D.C. Power Supply A. Decreases
B. Stays the same
C. Increases
D. None of the above
A. Is a battery
B. Acts like a battery in the breakdown region
C. Has a barrier potential of 1 V
D. Is forward biased
A Zener diode______________? Read More »
Regulated D.C. Power Supply A. More than
B. Less than
C. Equal to
D. None of the above
A 30 V Zener will have depletion layer width_______________ that of 10 V Zener? Read More »
Regulated D.C. Power Supply A. It decreases when load current increases
B. It destroys the diode
C. It equals current times the resistance
D. It is approximately constant
What is true about the breakdown voltage in a Zener diode ? Read More »
Regulated D.C. Power Supply A. 1 O
B. 1 O
C. 100 O
D. 10 O
A. External resistance
B. Power dissipation
C. Both (A) and (B)
D. None of the above
The current in a Zener diode is limited by _______________? Read More »
Regulated D.C. Power Supply A. 09%
B. 87 %
C. 72 %
D. None of the above