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GATE ECE 2017 Set 1
MCQ (Single Correct Answer)
+1
-0.3
For the operational amplifier circuit shown, the output saturation voltages are $$ \pm \,\,15V$$. The upper and lower threshold voltages for the circuit are, respectively. GATE ECE 2017 Set 1 Analog Circuits - Operational Amplifier Question 62 English
A
+5 V and -5V
B
+7 V and -3V
C
+3V and -7V
D
+3V and -3V
2
GATE ECE 2016 Set 1
Numerical
+1
-0
The following signal Vi of peak voltage 8V is applied to the non-inverting terminal of an ideal Opamp. The transistor has VBE = 0.7 V, $$\beta \, = \,100;$$ VLED = 1.5 V, VCC = 10V and -VCC = -10V. GATE ECE 2016 Set 1 Analog Circuits - Operational Amplifier Question 63 English 1 GATE ECE 2016 Set 1 Analog Circuits - Operational Amplifier Question 63 English 2

The number of times the LED glows is ______.

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3
GATE ECE 2016 Set 1
MCQ (Single Correct Answer)
+1
-0.3
Consider the constant current source shown in the figure below. Let $$\beta $$ represent the current gain of the transistor GATE ECE 2016 Set 1 Analog Circuits - Operational Amplifier Question 64 English

The load current I0 through RL is

A
$${I_0} = \left[ {{{\beta + 1} \over \beta }} \right]{{{V_{ref}}} \over R}$$
B
$${I_0} = \left[ {{\beta \over {\beta + 1}}} \right]{{{V_{ref}}} \over R}$$
C
$${I_0} = \left[ {{{\beta + 1} \over \beta }} \right]{{{V_{ref}}} \over {2R}}$$
D
$${I_0} = \left[ {{\beta \over {\beta + 1}}} \right]{{{V_{ref}}} \over {2R}}$$
4
GATE ECE 2015 Set 3
Numerical
+1
-0
In the circuit shown using am ideal opamp, the 3-dB cut-off frequency (in Hz) is _____. GATE ECE 2015 Set 3 Analog Circuits - Operational Amplifier Question 65 English
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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
State Equations For Networks Network Elements Network Theorems Two Port Networks Transient Response Sinusoidal Steady State Response Network Graphs 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
PN Junction Semiconductor Physics IC Basics and MOSFET BJT and FET
Analog Circuits
Diodes Bipolar Junction Transistor Frequency Response FET and MOSFET Oscillators Operational Amplifier Feedback Amplifier Power Amplifier 555 Timer
Engineering Mathematics
Linear Algebra Calculus Vector Calculus Probability and Statistics Differential Equations Complex Variable Numerical Methods Transform Theory
Microprocessors
Instruction Set and Programming with 8085 Pin Details of 8085 and Interfacing with 8085
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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