Search
.Management Sciences
Category: Regulated D.C. Power Supply
A Zener voltage regulator is used for ____________ load currents?
0
A. High
B. Very high
C. Moderate
D. Small
Commercial power supplies have voltage regulation ______________?
A. of 10%
B. of 15%
C. of 25%
D. within 1%
The rupture of co-valent bonds will occur when the electric field is__________________?
A. 100 V/cm
B. 6 V/cm
C. 1000 V/cm
D. More than 105 V/cm
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
For increasing the voltage rating, zeners are connected in_____________?
A. Parallel
B. Series-parallel
C. Series
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______________?
A. Is a battery
B. Acts like a battery in the breakdown region
C. Has a barrier potential of 1 V
D. Is forward biased
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
Recent Comments