A. More than
B. Less than
C. Equal to
D. None of the above
Related Mcqs:
- 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 - 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 - 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 - 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 - 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 - 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 - A Zener diode is used as a _____________voltage regulating device?
A. Shunt
B. Series
C. Series-shunt
D. None of the above - A Zener voltage regulator is used for ____________ load currents?
A. High
B. Very high
C. Moderate
D. Small - The current in a Zener diode is limited by _______________?
A. External resistance
B. Power dissipation
C. Both (A) and (B)
D. None of the above - 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
