Transistors Mcqs

This set of Electrical engineering Multiple Choice Questions & Answers (MCQs) focuses on study of “Transistors ”. These questions are chosen from a collection of most authoritative and best reference books on Electrical engineering. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, University and College entrance exams, Jobs and interviews. One should practice our MCQS to assimilate Transistors comprehensively.

3.
The output impedance of a transistor connected in_____________arrangement is the highest?

Common emitter

Common collector

Common base

None of the above

5.
In a pnp transistor, the current carriers are______________?

Acceptor ions

Donor ions

Free electrons

Holes

7.
In a npn transistor,_____________are the minority carriers?

Free electrons

Holes

Donor ions

Acceptor ions

11.
The relation between ß and a is______________?

ß = 1 / (1 – a )

ß = (1 – a ) / a

ß = a / (1 – a )

ß = a / (1 + a )

12.
The phase difference between the input and output voltages in a common base arrangement is___________?

180o

90o

270o

0o

13.
The leakage current in CE arrangement is____________that in CB arrangement?

More than

Less than

The same as

None of the above

15.
BC 147 transistor indicates that it is made of____________?

Germanium

Silicon

Carbon

None of the above

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