A Zener regulator _____________ in the power supply?

Related Mcqs:

1. A Zener voltage regulator will cease to act as a voltage regulator if Zener current becomes______________?

   A. Less than load current B. Zero C. More than load current D. None of the above...

2. If the load resistance decreases in a Zener regulator, then Zener current ______________?

   A. Decreases B. Stays the same C. Increases D. None of the above...

3. In a loaded Zener regulator, which is the largest Zener current ?

   A. Series current B. Zener current C. Load current D. None of the above...

4. A 5 mA changes in Zener current produces a 50 mA change in Zener voltage. What is the Zener impedance ?

   A. 1 O B. 1 O C. 100 O D. 10 O...

5. 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...

6. A Zener voltage regulator is used for ____________ load currents?

   A. High B. Very high C. Moderate D. Small...

7. A 30 V Zener will have depletion layer width_______________ that of 10 V Zener?

   A. More than B. Less than C. Equal to D. None of the above...

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

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

10. 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...