• Electrical Engineering Reference

# Amplifiers - Electronic Devices and Circuits MCQs

Amplifiers MCQ : Here you will find MCQ Questions related to "Amplifiers" in Electronic Devices and Circuits. These Amplifiers MCQ Questions Will help you to improve your Electronic Devices and Circuits knowledge and will prepare you for various Examinations like Competitive Exams, Placements, Interviews and other Entrance Exmaniations.

Question 1

An amplifier is an electronic device or circuit which is used to _____________ the magnitude of the signal applied to its input.

A. increase
B. decrease
C. same
D. Can not say

Question 2

An ideal signal amplifier will have _________ main properties

A. 1
B. 2
C. 3
D. 4

Question 3

If the input signal has been increased by a factor. This increase is called?

A. Loss
B. Gain
C. Loss amplifier
D. None of the above

Question 4

In Electronics, Unit of gain is?

A. Z
B. P
C. N
D. A

Question 5

Unit of Voltage Gain is ?

A. V
B. Cv
C. Av
D. Tv

Question 6

The voltage gain of the amplifier is 8 and the current gain is 7. The power gain of the amplifier is

A. 16.871 db
B. 17.481 db
C. 18.5 db
D. 20 db

Question 7

Symmetrically saturated amplifiers operating in clipping mode can be used to convert a sine wave to a

A. Square wave
B. Triangular wave
C. Sawtooth wave
D. Pseudo Square wave

Question 8

An amplifier has a voltage gain of 100 V/V and a current gain of 1000A/A. the value of the power gain decibel is

A. 30 db
B. 40 db
C. 50 db
D. 60 db

Question 9

The power gain (Ap) or power level of the amplifier can also be expressed in Decibels, (dB).

A. TRUE
B. FALSE
C. Can be true or false
D. Can not say