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

Related Mcqs:

1. 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...

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. 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...

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

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

6. A Zener regulator _____________ in the power supply?

   A. Increases the ripple B. Decreases the ripple C. Neither increases nor decreases the ripple D. Data insufficient...

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 certain regulator has a no-load voltage of 6 V and a full-load output of 5.82 V. What is the load regulation ?

   A. 09% B. 87 % C. 72 % D. None of the above...

10. 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...