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1
GATE ECE 2013
MCQ (Single Correct Answer)
+1
-0.3
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 Analog Circuits - Feedback Amplifier Question 16 English
A
The input impedance increases and output impedance decreases.
B
The input impedance increases and output impedance also increases.
C
The input impedance increases and output impedance also increases.
D
The input impedance increases and output impedance increases.
2
GATE ECE 1998
MCQ (Single Correct Answer)
+1
-0.3
In a shunt-shunt negative feedback Amplifier, as compared to the basic Amplifier,
A
both input and output impedance decreases .
B
input impedance decreases but output impedance increases.
C
input impedance increases but output impedance decreases
D
both input and output impedance decreases
3
GATE ECE 1995
MCQ (Single Correct Answer)
+1
-0.3
To obtain very high input and output impedances in a feedback Amplifier, the mostly used is
A
Voltage - series
B
Current - series
C
Voltage - shunt
D
Current - shunt
4
GATE ECE 1993
MCQ (More than One Correct Answer)
+1
-0.3
Negative feedback in Amplifiers.
A
improves the signal to noise ratio at the i/p.
B
improves the signal to noise ratio at the o/p.
C
does not effect the signal to noise ratio at the o/p.
D
Reduces distortion
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GATE ECE Subjects
Network Theory
State Equations For Networks Network Elements Network Theorems Two Port Networks Transient Response Sinusoidal Steady State Response Network Graphs Miscellaneous
Control Systems
Basic of Control Systems Signal Flow Graph and Block Diagram Time Response Analysis Stability Root Locus Diagram Frequency Response Analysis Compensators State Space Analysis
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
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
Microprocessors
Instruction Set and Programming with 8085 Pin Details of 8085 and Interfacing with 8085
Signals and Systems
Representation of Continuous Time Signal Fourier Series Discrete Time Signal Fourier Series Fourier Transform Discrete Time Signal Z Transform Continuous Time Linear Invariant System Transmission of Signal Through Continuous Time LTI Systems Discrete Time Linear Time Invariant Systems Sampling Continuous Time Signal Laplace Transform Discrete Fourier Transform and Fast Fourier Transform Transmission of Signal Through Discrete Time Lti Systems Miscellaneous Fourier Transform
Communications
Analog Communication Systems Digital Communication Systems Random Signals and Noise Fundamentals of Information Theory Noise In Digital Communication
Electromagnetics
Waveguides Antennas Miscellaneous Transmission Lines Maxwell Equations Uniform Plane Waves
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Linear Algebra Calculus Vector Calculus Complex Variable Probability and Statistics Differential Equations Numerical Methods Transform Theory
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