GATE ECE

Feedback Amplifier

Analog Circuits

(Past Years Questions)

Marks 1

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The desirable characteristics of a transconductance amplifier are
GATE ECE 2014 Set 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
A good current buffer has
GATE ECE 2014 Set 1
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
In a voltage-voltage feedback as shown below, which one of the following statements is TRUE, if the gain k is increased?...
GATE ECE 2013
In a shunt-shunt negative feedback Amplifier, as compared to the basic Amplifier,
GATE ECE 1998
To obtain very high input and output impedances in a feedback Amplifier, the mostly used is
GATE ECE 1995
Negative feedback in Amplifiers.
GATE ECE 1993

Marks 2

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Voltage series feedback (also called series-shunt feedback) results in
GATE ECE 2004
An amplifier without feedback has a voltage gain of 50, input Resistance of 1 k$$\Omega $$ and output Resistance of 2.5...
GATE ECE 2003
In a negative feedback amplifier using voltage - Series (i.e., voltage - sampling, series mixing) feedback
GATE ECE 2002
The most commonly used Amplifier in sample and hold circuit is
GATE ECE 2000
Negative feedback in an amplifier
GATE ECE 1999
An amplifier has an open loop gain of 100, an input impedance of 1 k$$_\Omega $$, and an output impedance of 100 $$_\Ome...
GATE ECE 1999
Negative feedback in 1. Voltage series configuration 2.Current shunt configuration (a) increases input impedance (b)...
GATE ECE 1997
Two non-inverting amplifiers, one having a unity gain and other having a gain of twenty, are made using identical opera...
GATE ECE 1991
The feedback amplifier shown in Fig.has: ...
GATE ECE 1989

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