This is an MCQ-based quiz on Regulated DC Power Supply.
This includes the Avalanche mechanism, and Zener mechanism
In an unregulated power supply, if input a.c. voltage increases, the output voltage …….
A power supply which has voltage regulation of ……….. is unregulated power supply
An ideal regulated power supply is one which has voltage regulation of …………
A Zener voltage regulator will cease to act as a voltage regulator if Zener current becomes ___________
A Zener regulator ___________ in the power supply
Zener diode are generally made of ___________
In an unregulated power supply, if load current increases, the output voltage ___________
Commercial power supplies have voltage regulation ………….
Of 10%
Of 15%
Of 25%
Within 1%
When load current is zero, the Zener current will be ____.
Which one of the following is the another name of Zener diode?
The basic building blocks of a regulated DC power supply contains:
Zener diode are generally made of _____.
A regulated DC power supply is also known as a ____.
Linear power supply
Dual power supply
Hyper power supply
None of the above
A Zener diode __________
A power supply has a voltage regulation of 1%. If the no-load voltage is 20 V, what is the full-load voltage?
A 5 mA changes in Zener current produces a 50 mA change in Zener voltage. What is the Zener impedance?
1 O
.1 O
100 O
10 O
If the load resistance decreases in a Zener regulator, then Zener current ___________
Decreases
Stays the same
Increases
None of the above
A certain regulator has a no-load voltage of 6 V and a full-load output of 5.82 V. What is the load regulation?
3
2
5
None of the above