Q.1
For increasing the voltage rating, zeners are connected in ___________
Q.2
Two similar 15 V Zeners are connected in series. What is the regulated output voltage?
Q.3
If the load current drawn by unregulated power supply increases, the d.c. output voltage ___________
Q.4
When load current is zero, the Zener current will be
Q.5
An ideal regulated power supply is one which has voltage regulation of ___________
Q.6
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?
Q.7
A 30 V Zener will have depletion layer width ___________ that of 10 V Zener
Q.8
A Zener voltage regulator is used for ___________ load currents
Q.9
A Zener diode that has very narrow depletion layer will breakdown by mechanism
Q.10
The load voltage is approximately constant when a Zener diode is ___________
Q.11
A power supply has a voltage regulation of 1%. If the no-load voltage is 20 V, what is the full-load voltage?
Q.12
In a Zener voltage regulator, the changes in load current produce changes in ___________
0 h : 0 m : 1 s