What is true about the breakdown voltage in a Zener diode ?

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. 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...

3. In a 15 V Zener diode , the breakdown mechanism will occur by ______________?

   A. Avalanche mechanism B. Zener mechanism C. Both Zener and avalanche mechanism D. None of the above...

4. A Zener diode that has very narrow depletion layer will breakdown by____________ mechanism?

   A. Avalanche B. Zener C. Both avalanche and Zener D. None of the above...

5. 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...

6. A Zener diode utilises_____________characteristic for voltage regulation?

   A. Forward B. Reverse C. Both forward and reverse D. None of the above...

7. The load voltage is approximately constant when a Zener diode is ________________?

   A. Forward biased B. Unbiased C. Reverse biased D. Operating in the breakdown region...

8. 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...

9. 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...

10. 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...