11. A CE amplifier is also called _______________ circuit?
A. Grounded emitter
B. Grounded base
C. Grounded collector
D. None of the above
✅ The correct answer is option A.
Single Stage Transistor Amplifiers MCQs
12. The slope of a.c. load line is ______________ that of d.c. load line?
A. The same as
B. More than
C. Less than
D. None of the above
✅ The correct answer is option B.
13. The purpose of emitter capacitor (i.e. capacitor across RE) is to ______________?
A. Avoid voltage gain drop
B. Forward bias the emitter
C. Reduce noise in the amplifier
D. None of the above
✅ The correct answer is option A.
14. The radio wave picked up by the receiving antenna is amplified about _________________ times to have reasonable sound output?
A. 1000
B. A million
C. 100
D. 10000
✅ The correct answer is option B.
15. The ratio of output impedance of a CE amplifier is _______________?
A. About 1
B. Low
C. High
D. Moderate
✅ The correct answer is option D.
16. An amplifier has a power gain of 100. Its db gain is ________________?
A. 10 db
B. 20 db
C. 40 db
D. None of the above
✅ The correct answer is option B.
17. The purpose of a coupling capacitor in a transistor amplifier is to ___________________?
A. Increase the output impedance of transistor
B. Protect the transistor
C. Pass a.c. and block d.c.
D. Provide biasing
✅ The correct answer is option C.
18. A single stage transistor amplifier contains______________ and associated circuitry?
A. Two transistors
B. One transistor
C. Three transistor
D. None of the above
✅ The correct answer is option B.