MCQs on Analog Electronics

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01․ The load voltage is approximately constant when a zener diode is
forward biased.
reverse biased.
operating in breakdown region.
unbiased.

Under construction.
02․ In a loaded zener regulator, which is the largest current?
Series current.
Zener current.
Load current.
None of the above.

Under construction.
03․ If the load resistance increases in a zener regulator, the zener current
decreases.
stays the same.
Increases.
equals the source voltage divided by series resistance.

Under construction.
04․ When the source voltage increases in a zener regulator, which of these electric current remain approximately constant ?
Series current.
Zener current.
Load current.
None of these.

Under construction.
05․ If the zener diode in a zener regulator is connected with the wrong polarity, the load voltage will be closest to
0.7 V.
10 V.
14 V.
18 V.

Under construction.
06․ A voltage regulator is a circuit which
converts the AC voltage to DC voltage.
smoothed the AC variation in DC output voltage.
maintains constant DC output voltage inspite of the fluctu
none of the above.

Under construction.
07․ The percentage voltage regulation of voltage supply providing 100 V unloaded and 95 V at full load is
5.3 %.
5 %.
0.53 %.
none of them.

Under construction.
08․ The main job of a voltage regulator is to provide a nearly __________________ output voltage.
sinusoidal.
constant.
smooth.
fluctuating.

Under construction.
09․ A 10 V DC regulator power supply has a regulation of 0.005 %. The output voltage will vary within an envelope of __________________ milivolt.
2.5.
0.5.
5.
0.05.

Under construction.
10․ An ideal voltage regulator has a voltage regulation of
1.
100.
50.
0.

Under construction.
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