Electrical Engineering MCQs

Page No. 89

A Zener voltage regulator will cease to act as a voltage regulator if Zener current becomes______________?


aLess than load current


bZero


cMore than load current


dNone of the above


View Answer Zero

Another name for Zener diode is ______________diode?


aBreakdown


bVoltage


cPower


d Current


View Answer Breakdown

For increasing the voltage rating, zeners are connected in_____________?


a Parallel


bSeries-parallel


cSeries


d None of the above


View Answer Series

In a Zener voltage regulator, the changes in load current produce changes in _________________?


aZener current


bZener voltage


cZener voltage as well as Zener current


dNone of the above


View Answer Zener current

If the doping level is increased, the breakdown voltage of the Zener_______________?


aRemains the same


bIs increased


cIs decreased


dNone of the above


View Answer Is decreased

Zener diode are generally made of _____________?


aGermanium


bSilicon


cCarbon


d None of the above


View Answer Silicon

As the junction temperature increases, the voltage breakdown point for avalanche mechanism______________?


aRemains the same


bDecrease


c Increases


dNone of the above


View Answer Increases

A Zener diode is used as a _____________voltage regulating device?


aShunt


bSeries


cSeries-shunt


d None of the above


View Answer Shunt

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


aAvalanche mechanism


bZener mechanism


cBoth Zener and avalanche mechanism


dNone of the above


View Answer Avalanche mechanism

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


aIs increased


bIs decreased


cRemains the same


dNone of the above


View Answer Is decreased

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