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Analog Circuits
Bipolar Junction Transistor
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FET and MOSFET
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Oscillators
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Operational Amplifier
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555 Timer
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Frequency Response
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Diodes
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Feedback Amplifier
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Power Amplifier
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1
GATE ECE 2023
MCQ (Single Correct Answer)
+1
-0.33

A cascade of common-source amplifiers in a unity gain feedback configuration oscillates when

A
the closed loop gain is less than 1 and the phase shift is less than 180$$^\circ$$.
B
the closed loop gain is greater than 1 and the phase shift is less than 180$$^\circ$$.
C
the closed loop gain is less than 1 and the phase shift is greater than 180$$^\circ$$.
D
the closed loop gain is greater than 1 and the phase shift is greater than 180$$^\circ$$.
2
GATE ECE 2014 Set 3
MCQ (Single Correct Answer)
+1
-0.3
The desirable characteristics of a transconductance amplifier are
A
high input resistance and high output resistance
B
high input resistance and low output resistance
C
low input resistance and high output resistance
D
low input resistance and low output resistance
3
GATE ECE 2014 Set 2
MCQ (Single Correct Answer)
+1
-0.3
The feedback topology in the amplifier circuit (the base bias circuit is not shown for simplicity) in the figure is GATE ECE 2014 Set 2 Analog Circuits - Feedback Amplifier Question 13 English
A
Voltage shunt feedback.
B
Current series feedback.
C
Current shunt feedback.
D
Voltage series feedback.
4
GATE ECE 2014 Set 1
MCQ (Single Correct Answer)
+1
-0.3
In the ac equivalent circuit shown in the figure, if i$${_F}$$ is very large, the type of feedback is GATE ECE 2014 Set 1 Analog Circuits - Feedback Amplifier Question 14 English
A
voltage-voltage feedback
B
voltage-current feedback
C
current-voltage feedback
D
current-current feedback
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Questions Asked from Marks 1
GATE ECE 2024 (1) GATE ECE 2023 (1) GATE ECE 2014 Set 3 (1) GATE ECE 2014 Set 2 (1) GATE ECE 2014 Set 1 (2) GATE ECE 2013 (1) GATE ECE 1998 (1) GATE ECE 1995 (1) GATE ECE 1993 (1)
GATE ECE Subjects
Signals and Systems
Network Theory
Control Systems
Digital Circuits
General Aptitude
Electronic Devices and VLSI
Analog Circuits
Engineering Mathematics
Microprocessors
Communications
Electromagnetics