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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
Marks 1Marks 2
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1
GATE ECE 2004
MCQ (Single Correct Answer)
+2
-0.6
Voltage series feedback (also called series-shunt feedback) results in
A
increase in both input and output impedances.
B
decrease in both input and output impedances.
C
increase in both input impedances and decrease in output impedances.
D
decrease in input impedances and increase in output impedance.
2
GATE ECE 2003
MCQ (Single Correct Answer)
+2
-0.6
An amplifier without feedback has a voltage gain of 50, input Resistance of 1 k$$\Omega $$ and output Resistance of 2.5 k$$\Omega $$ . The input Resistance of the current-shunt negative feedback factor of 0.2 is
A
1/1 k$$\Omega $$
B
1/5 k$$\Omega $$
C
5 k$$\Omega $$
D
11 k$$\Omega $$
3
GATE ECE 2002
MCQ (Single Correct Answer)
+2
-0.6
In a negative feedback amplifier using voltage - Series (i.e., voltage - sampling, series mixing) feedback
A
$${R_i}$$ decreases and $${R_0}$$ decreases
($${R_i}$$ and $${R_0}$$ denote the input and outout resistances respectively)
B
$${R_i}$$ decreases and $${R_0}$$ increases
($${R_i}$$ and $${R_0}$$ denote the input and outout resistances respectively)
C
$${R_i}$$ increases and $${R_0}$$ decreases
($${R_i}$$ and $${R_0}$$ denote the input and outout resistances respectively)
D
$${R_i}$$ increases and $${R_0}$$ increases
($${R_i}$$ and $${R_0}$$ denote the input and outout resistances respectively)
4
GATE ECE 2000
MCQ (Single Correct Answer)
+2
-0.6
The most commonly used Amplifier in sample and hold circuit is
A
A unity gain inverting Amplifier
B
A unity gain non-inverting inverting Amplifier
C
An inverting Amplifier with a gain of 10.
D
An inverting Amplifier with a gain of 100.
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Questions Asked from Marks 2
GATE ECE 2004 (1) GATE ECE 2003 (1) GATE ECE 2002 (1) GATE ECE 2000 (1) GATE ECE 1999 (2) GATE ECE 1997 (1) GATE ECE 1991 (1) GATE ECE 1989 (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