A. 10%
B. 20%
C. 15%
D. 5%
Related Mcqs:
- In an unregulated power supply, if input a.c. voltage increases, the output voltage _______________?
A. Increases
B. Decreases
C. Remains the same
D. None of the above - In a regulated power supply, two similar 15 V zeners are connected in series. The input voltage is 45 V d.c. If each Zener has a maximum current rating of 300 mA, what should be the value of the series resistance ?
A. 10 O
B. 50 O
C. 25 O
D. 40 O - An ideal regulated power supply is one which has voltage regulation of________________?
A. 0%
B. 5%
C. 10%
D. 1% - A power supply has a voltage regulation of 1%. If the no-load voltage is 20 V, what is the full-load voltage ?
A. 8 V
B. 7 V
C. 6 V
D. 2 V - 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 - 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 power supply can deliver a maximum rated current of 0.5 A at full-load output voltage of 20 V. What is the minimum load resistance that you can connect across the supply?
A. 10 O
B. 20 O
C. 15 O
D. 40 O - A power supply which has voltage regulation of ____________ is unregulated power supply?
A. 0 %
B. 5 %
C. 10 %
D. 8% - Two similar 15 V Zeners are connected in series. What is the regulated output voltage ?
A. 15 V
B. 5 V
C. 30 V
D. 45 V - 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
