Electrical Engineering MCQs

Page No. 131

When a crystal diode is used as a rectifier, the most important consideration is ____________?


aforward characteristic


bdoping level


creverse characteristic


dPIC rating


View Answer PIC rating

The leakage current in CE arrangement is____________that in CB arrangement?


amore than


b less than


c the same as


dnone of the above


View Answer more than

A zener diode is always_______________ connected?


areverse


bforward


ceither reverse or forward


d none of the above


View Answer reverse

If the value of a is 0.9, then value of ß is___________?


a9


b0.9


c 900


d 90


View Answer 90

A zener diode has ________________?


aone pn junction


b two pn junctions


cthree pn junctions


d none of the above


View Answer one pn junction

BC 147 transistor indicates that it is made of____________?


agermanium


bsilicon


c carbon


dnone of the above


View Answer silicon

As the temperature of a transistor goes up, the base-emitter resistance___________?


adecreases


b increases


cremains the same


dnone of the above


View Answer decreases

The most commonly used transistor arrangement is____________arrangement?


a common emitter


bcommon base


c common collector


dnone of the above


View Answer common emitter

A crystal diode utilises …………….. characteristic for rectification


areverse


bforward


cforward or reverse


dnone of the above


View Answer forward

The output impedance of a transistor is____________?


ahigh


bzero


clow


dvery low


View Answer high

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