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

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. As the junction temperature increases, the voltage breakdown point for avalanche mechanism______________?

   A. Remains the same B. Decrease C. Increases D. None of the above...

3. 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...

4. 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...

5. 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...

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

   A. It decreases when load current increases B. It destroys the diode C. It equals current times the resistance D. It is approximately constant...

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. 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...

9. 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...

10. 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...