Electronic Devices Circuits Multistage Amplifier Online Exam Quiz
Electronic Devices Circuits Multistage Amplifier GK Quiz. Question and Answers related to Electronic Devices Circuits Multistage Amplifier. MCQ (Multiple Choice Questions with answers about Electronic Devices Circuits Multistage Amplifier
If a three stage amplifier has individual stage gains of 10db, 6db and 15db; then the total gain in db is ______
Options
A : 600db
B : 24db
C : 14db
D : 31db
The voltage gain is practically expressed in _______
Options
A : db
B : volts
C : as a number
D : ampere
Why is RC coupling confined to low power applications?
Options
A : Due to large value of coupling capacitor
B : Low efficiency
C : Large number of components
D : Due to is frequency response
The frequency response of transformer coupling is ________
Options
A : Good
B : Very Good
C : Excellent
D : Poor
Which of the following is an advantage of RC coupling scheme?
Options
A : Good impedance matching
B : Economy
C : High efficiency
D : Frequency response
Gain of an amplifier usually expressed in db because _______________
Options
A : It is a small unit
B : Calculations become easy
C : Human ear response is logarithmic
D : Gain is reduced
A radio receiver has how many stages of amplification?
Options
A : One
B : Two
C : Three
D : More than one
The total gain of a multistage amplifier is less than the product of the gains of individual stages due to ___________
Options
A : Power loss in the coupling device
B : Loading effect of the next stage
C : The use of many transistors
D : The use of many capacitors
Which transformer is used for impedance matching in transistor coupled amplifier?
Options
A : step-up
B : step-down
C : same turn ratio
D : different turn ratio
For extremely low frequencies, RC coupling is not used because of ___________
Options
A : There is considerable power loss
B : There is a hum in the output
C : Electrical size of the coupling capacitor
D : Low efficiency
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