Transistors Archives - MCQ and Quiz for Exams

1. The output impedance of a transistor connected in ___________ arrangement is the highest

common emitter

common collector

common base

none of the above

Detailed SolutionThe output impedance of a transistor connected in ___________ arrangement is the highest

2. A transistor is connected in CB mode. If it is not connected in CE mode with same bias voltages, the values of IE, IB and IC will ___________

remain the same

increase

decrease

none of the above

Detailed SolutionA transistor is connected in CB mode. If it is not connected in CE mode with same bias voltages, the values of IE, IB and IC will ___________

3. The collector of a transistor is ___________ doped

heavily

moderately

lightly

none of the above

Detailed SolutionThe collector of a transistor is ___________ doped

4. If Q of an LC circuit increases, then bandwidth ___________

Increases

Decreases

Remains the same

Insufficient data

Detailed SolutionIf Q of an LC circuit increases, then bandwidth ___________

5. A tuned amplifier is generally operated in ___________ operation

Class A

Class C

Class B

None of the above

Detailed SolutionA tuned amplifier is generally operated in ___________ operation

6. The phase difference between the input and output voltages in a common base arrangement is ___________

180Â°

90Â°

270Â°

0Â°

Detailed SolutionThe phase difference between the input and output voltages in a common base arrangement is ___________

7. Operating point represents ___________

Values of IC and VCE when signal is applied

The magnitude of signal

Zero signal values of IC and VCE

None of the above

Detailed SolutionOperating point represents ___________

8. The voltage gain in a transistor connected in ___________ arrangement is the highest

common base

common collector

common emitter

none of the above

Detailed SolutionThe voltage gain in a transistor connected in ___________ arrangement is the highest

9. In a transistor, the base current is about ___________ of emitter current

25%

20%

35%

5%

Detailed SolutionIn a transistor, the base current is about ___________ of emitter current

10. IC = [a/(1 – a )] IB + [. . . . . . . . /(1 – a)]?

ICBO

ICEO

IC

IE

Detailed SolutionIC = [a/(1 – a )] IB + [. . . . . . . . /(1 – a)]?

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