GATE ECE 2004 | Feedback Amplifier Question 8 | Analog Circuits

GATE ECE 2004

MCQ (Single Correct Answer)

-0.6

Voltage series feedback (also called series-shunt feedback) results in

increase in both input and output impedances.

decrease in both input and output impedances.

increase in both input impedances and decrease in output impedances.

decrease in input impedances and increase in output impedance.

GATE ECE 2003

MCQ (Single Correct Answer)

-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

1/1 k$$\Omega $$

1/5 k$$\Omega $$

5 k$$\Omega $$

11 k$$\Omega $$

GATE ECE 2002

MCQ (Single Correct Answer)

-0.6

In a negative feedback amplifier using voltage - Series (i.e., voltage - sampling, series mixing) feedback

$${R_i}$$ decreases and $${R_0}$$ decreases
($${R_i}$$ and $${R_0}$$ denote the input and outout resistances respectively)

$${R_i}$$ decreases and $${R_0}$$ increases
($${R_i}$$ and $${R_0}$$ denote the input and outout resistances respectively)

$${R_i}$$ increases and $${R_0}$$ decreases
($${R_i}$$ and $${R_0}$$ denote the input and outout resistances respectively)

$${R_i}$$ increases and $${R_0}$$ increases
($${R_i}$$ and $${R_0}$$ denote the input and outout resistances respectively)

GATE ECE 2000

MCQ (Single Correct Answer)

-0.6

The most commonly used Amplifier in sample and hold circuit is

A unity gain inverting Amplifier

A unity gain non-inverting inverting Amplifier

An inverting Amplifier with a gain of 10.

An inverting Amplifier with a gain of 100.

GATE ECE Subjects

Signals and Systems

Representation of Continuous Time Signal Fourier Series Fourier Transform Continuous Time Signal Laplace Transform Discrete Time Signal Fourier Series Fourier Transform Discrete Fourier Transform and Fast Fourier Transform Discrete Time Signal Z Transform Continuous Time Linear Invariant System Discrete Time Linear Time Invariant Systems Transmission of Signal Through Continuous Time LTI Systems Sampling Transmission of Signal Through Discrete Time Lti Systems Miscellaneous

Network Theory

Network Elements Network Theorems Transient Response Sinusoidal Steady State Response Two Port Networks Network Graphs State Equations For Networks Miscellaneous

Control Systems

Signal Flow Graph and Block Diagram Time Response Analysis Compensators Basic of Control Systems Frequency Response Analysis Stability Root Locus Diagram State Space Analysis

Digital Circuits

Logic Gates Boolean Algebra Analog to Digital and Digital to Analog Converters Sequential Circuits Combinational Circuits Logic Families Number System and Code Convertions Semiconductor Memories

General Aptitude

Numerical Ability Logical Reasoning Verbal Ability

Electronic Devices and VLSI

Semiconductor Physics PN Junction BJT and FET IC Basics and MOSFET

Analog Circuits

Bipolar Junction Transistor FET and MOSFET Oscillators Operational Amplifier 555 Timer Frequency Response Diodes Feedback Amplifier Power Amplifier

Engineering Mathematics

Linear Algebra Calculus Vector Calculus Complex Variable Probability and Statistics Differential Equations Numerical Methods Transform Theory

Microprocessors

Pin Details of 8085 and Interfacing with 8085 Instruction Set and Programming with 8085

Communications

Fundamentals of Information Theory Noise In Digital Communication Analog Communication Systems Digital Communication Systems Random Signals and Noise

Electromagnetics

Waveguides Antennas Miscellaneous Transmission Lines Maxwell Equations Uniform Plane Waves