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Regulated D.C. Power Supply

In a 15 V Zener diode , the breakdown mechanism will occur by ______________?

August 11, 2021December 22, 2018 by admin
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

Categories Regulated D.C. Power Supply

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

August 11, 2021December 22, 2018 by admin
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

Categories Regulated D.C. Power Supply

A Zener diode utilises_____________characteristic for voltage regulation?

August 11, 2021December 22, 2018 by admin
A Zener diode utilises_____________characteristic for voltage regulation?

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

Categories Regulated D.C. Power Supply

Commercial power supplies have voltage regulation ______________?

August 11, 2021December 22, 2018 by admin
Commercial power supplies have voltage regulation ______________?

A. of 10%
B. of 15%
C. of 25%
D. within 1%

Categories Regulated D.C. Power Supply

In an unregulated power supply, if input a.c. voltage increases, the output voltage _______________?

August 11, 2021December 22, 2018 by admin
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

Categories Regulated D.C. Power Supply

In an unregulated power supply, if load current increases, the output voltage _____________?

August 11, 2021December 22, 2018 by admin
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

Categories Regulated D.C. Power Supply

A power supply which has voltage regulation of ____________ is unregulated power supply?

August 11, 2021December 22, 2018 by admin
A power supply which has voltage regulation of ____________ is unregulated power supply?

A. 0 %
B. 5 %
C. 10 %
D. 8%

Categories Regulated D.C. Power Supply

An ideal regulated power supply is one which has voltage regulation of________________?

August 11, 2021December 22, 2018 by admin
An ideal regulated power supply is one which has voltage regulation of________________?

A. 0%
B. 5%
C. 10%
D. 1%

Categories Regulated D.C. Power Supply

The rupture of co-valent bonds will occur when the electric field is__________________?

August 11, 2021December 22, 2018 by admin
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

Categories Regulated D.C. Power Supply

Zener diode can be used as__________________?

August 11, 2021December 22, 2018 by admin
Zener diode can be used as__________________?

A. c. voltage regulator only
B. c. voltage regulator only
C. both D.C and A.C voltage regulator
D. none of the above

Categories Regulated D.C. Power Supply
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