Subject Repository
Electrical Engineering Mcqs
Showing 881 – 900 of 3,699 verified multiple choice questions with answers and explanations.
Q882NTS / FPSC / PPSC
A power supply has a voltage regulation of 1%. If the no-load voltage is 20 V, what is the full-load voltage ?
Q884NTS / FPSC / PPSC
When load current is zero, the Zener current will be_____________?
Q885NTS / FPSC / PPSC
A power supply can deliver a maximum rated current of 0.5 A at full-load output voltage of 20 V. What is the minimum load resistance that you can connect across the supply?
Q886NTS / FPSC / PPSC
A Zener regulator _____________ in the power supply?
Q887NTS / FPSC / PPSC
The Zener current will be minimum when_____________?
Q888NTS / FPSC / PPSC
Two similar 15 V Zeners are connected in series. What is the regulated output voltage ?
Q889NTS / FPSC / PPSC
If the input a.c. voltage to regulated or ordinary power supply increases by 5% what will be the approximate change in d.c. output voltage?
Q890NTS / FPSC / PPSC
The load voltage is approximately constant when a Zener diode is ________________?
Q891NTS / FPSC / PPSC
If the load current drawn by unregulated power supply increases, the d.c. output voltage _____________?
Q892NTS / FPSC / PPSC
If the load current drawn by unregulated power supply increases, the d.c. output voltage______________?
Q893NTS / FPSC / PPSC
In a loaded Zener regulator, which is the largest Zener current ?
Q894NTS / FPSC / PPSC
Which of these is the best description for a Zener diode ?
Q895NTS / FPSC / PPSC
If the load resistance decreases in a Zener regulator, then Zener current ______________?
Q897NTS / FPSC / PPSC
A 30 V Zener will have depletion layer width_______________ that of 10 V Zener?
Q898NTS / FPSC / PPSC