Electronic Devices Circuits Transconductance Amplifiers Online Exam Quiz
Electronic Devices Circuits Transconductance Amplifiers GK Quiz. Question and Answers related to Electronic Devices Circuits Transconductance Amplifiers. MCQ (Multiple Choice Questions with answers about Electronic Devices Circuits Transconductance Amplifiers
The transconductance of a JFET ranges from ____________
Options
A : 100 to 500 mA/V
B : 500 to 1000 mA/V
C : 0.5 to 30 mA/V
D : above 1000 mA/V
At cut-off, the JFET channel is ___________
Options
A : at its widest point
B : completely closed by the depletion region
C : extremely narrow
D : reverse baised
A transconductance amplifier is also called ___________
Options
A : current to voltage convertor
B : voltage to current convertor
C : resistor
D : inductor
The constant-current region of a JFET lies between__________
Options
A : Cut off and saturation
B : Cut off and pinch off
C : 0 and IDSS
D : Cut off and breakdown
The output characteristics of a JFET closely resemble the output characteristics of a __________ Valve
Options
A : diode
B : pentode
C : triode
D : tetrode
The channel of a JFET is between the ________
Options
A : gate and drain
B : gate and source
C : drain and source
D : input and output
If the cross-sectional area of the channel in n-channel JFET increases, the drain current__________
Options
A : is increased
B : is decreased
C : remains the same
D : decreases exponentially then increase
MOSFET from a JFET differs mainly because _____________
Options
A : of power rating
B : of the output
C : the JFET has a pn junction
D : the MOSFET has two gates
The source terminal of a JEFT corresponds to ____________ of a vacuum tube
Options
A : plate
B : cathode
C : grid
D : anode
A certain common-source JFET has a voltage gain of 10. If the source bypass capacitor is removed, _____________
Options
A : the voltage gain will increase
B : transconductance will increase
C : voltage gain will decrease
D : the Q-point will shift
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