Electronic Devices Circuits Exam Online Exam Quiz
Electronic Devices Circuits Exam GK Quiz. Question and Answers related to Electronic Devices Circuits Exam. MCQ (Multiple Choice Questions with answers about Electronic Devices Circuits Exam
What is the maximum value of gain of an amplifier?
Options
A : 140dB
B : 130dB
C : 120db
D : 100dB
The pinch off voltage of JFET is 5v. What is its cut off voltage?
Options
A : 2.5V
B : 3V
C : 4V
D : 5V
At higher frequency, the capacitance of an amplifier circuit is mainly because of which capacitance?
Options
A : Coupling capacitors
B : Stray capacitance
C : Resistors
D : Inductors
The action of JFET in its equivalent circuit can be represented as which of the following?
Options
A : Current controlled current source
B : Current controlled voltage source
C : Voltage controlled current source
D : Voltage controlled Voltage source
Which of the following is the main advantage of Self bias?
Options
A : Eliminates the need of two power supply
B : Maximum stability
C : Minimum stability
D : Maximum & Minimum stability
Which of the following is the equation for stray capacitance frequency?
Options
A : FH = 1/27R
B : FH = 1/R
C : FH = 54/27R
D : FH = 11/27R
Two identical FETs, each characterized by the parameters g_m and r_d are connected in parallel .The composite FET is then characterized by the parameters_____________
Options
A : gm/2 and 2rd
B : gm/2 and 2rd
C : 2gm and rd/2
D : 2gm and rd/2
FET amplifier does not obey the law of conservation of energy.
Options
A : True
B : False
C :
D :
Which of the following is the necessary condition to design an amplifier?
Options
A : Vce ? 1?10 of RC
B : |Vce| ? 1?10 of RC
C : |Vce| ? 1?1000 of RC
D : |Vce| ? 1?100 of RC
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