Which of these is the best description for 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. 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

4. 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

5. 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

6. Zener diode are generally made of _____________?

   A. Germanium
   B. Silicon
   C. Carbon
   D. None of the above

7. A Zener diode is used as a _____________voltage regulating device?

   A. Shunt
   B. Series
   C. Series-shunt
   D. None of the above

8. A Zener diode utilises_____________characteristic for voltage regulation?

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

9. Another name for Zener diode is ______________diode?

   A. Breakdown
   B. Voltage
   C. Power
   D. Current

10. 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