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1
GATE ECE 2022
MCQ (More than One Correct Answer)
+1
-0.33

An ideal OPAMP circuit with a sinusoidal input is shown in the figure. The 3 dB frequency is the frequency at which the magnitude of the voltage gain decreases by 3 dB from the maximum value. Which of the options is/are correct?

GATE ECE 2022 Analog Circuits - Operational Amplifier Question 1 English

A
The circuit is a low pass filter.
B
The circuit is a high pass filter.
C
The 3 dB frequency is 1000 rad/s.
D
The 3 dB frequency is $${{1000} \over 3}$$ rad/s.
2
GATE ECE 2022
MCQ (Single Correct Answer)
+1
-0.33

A circuit with an ideal OPAMP is shown. The Bode plot for the magnitude (in dB) of the gain transfer function (Av(j$$\omega$$) = Vout(j$$\omega$$)/Vin(j$$\omega$$)) of the circuit is also provided (here, $$\omega$$ is the angular frequency in rad/s). The values of R and C are __________.

GATE ECE 2022 Analog Circuits - Operational Amplifier Question 2 English

A
R = 3 k$$\Omega$$, C = 1 $$\mu$$F
B
R = 1 k$$\Omega$$, C = 3 $$\mu$$F
C
R = 4 k$$\Omega$$, C = 1 $$\mu$$F
D
R = 3 k$$\Omega$$, C = 2 $$\mu$$F
3
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 58 English
A
+5 V and -5V
B
+7 V and -3V
C
+3V and -7V
D
+3V and -3V
4
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 60 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
$${I_0} = \left[ {{\beta \over {\beta + 1}}} \right]{{{V_{ref}}} \over {2R}}$$
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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
Signal Flow Graph and Block Diagram Time Response Analysis Compensators Basic of Control Systems Frequency Response Analysis Stability Root Locus Diagram State Space Analysis
Electronic Devices and VLSI
PN Junction Semiconductor Physics IC Basics and MOSFET BJT and FET
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
Pin Details of 8085 and Interfacing with 8085 Instruction Set and Programming 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
General Aptitude
Numerical Ability Verbal Ability
Engineering Mathematics
Linear Algebra Calculus Vector Calculus Complex Variable Probability and Statistics Differential Equations Numerical Methods Transform Theory
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