A Zener diode is used as a _____________voltage regulating device?
A. Shunt
B. Series
C. Series-shunt
D. None of the above
Month: December 2018
In a 15 V Zener diode , the breakdown mechanism will occur by ______________?
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
As the junction temperature increases, the voltage breakdown point for Zener mechanism _______________?
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 utilises_____________characteristic for voltage regulation?
A Zener diode utilises_____________characteristic for voltage regulation?
A. Forward
B. Reverse
C. Both forward and reverse
D. None of the above
In an unregulated power supply, if load current increases, the output voltage _____________?
In an unregulated power supply, if load current increases, the output voltage _____________?
A. Remains the same
B. Decreases
C. Increases
D. None of the above
In an unregulated power supply, if input a.c. voltage increases, the output voltage _______________?
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
Commercial power supplies have voltage regulation ______________?
Commercial power supplies have voltage regulation ______________?
A. of 10%
B. of 15%
C. of 25%
D. within 1%
A power supply which has voltage regulation of ____________ is unregulated power supply?
A power supply which has voltage regulation of ____________ is unregulated power supply?
A. 0 %
B. 5 %
C. 10 %
D. 8%
An ideal regulated power supply is one which has voltage regulation of________________?
An ideal regulated power supply is one which has voltage regulation of________________?
A. 0%
B. 5%
C. 10%
D. 1%
The rupture of co-valent bonds will occur when the electric field is__________________?
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