In an unregulated power supply, if input a.c. voltage increases, the output voltage _______________?

Related Mcqs:

1. 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...

2. 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...

3. If the input a.c. voltage to regulated or ordinary power supply increases by 5% what will be the approximate change in d.c. output voltage?

   A. 10% B. 20% C. 15% D. 5%...

4. A power supply which has voltage regulation of ____________ is unregulated power supply?

   A. 0 % B. 5 % C. 10 % D. 8%...

5. 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...

6. 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...

7. 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...

8. 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...

9. As the junction temperature increases, the voltage breakdown point for Zener mechanism _______________?

   A. Is increased B. Is decreased C. Remains the same D. None of the above...

10. An ideal regulated power supply is one which has voltage regulation of________________?

    A. 0% B. 5% C. 10% D. 1%...