1
GATE ECE 2026
MCQ (Single Correct Answer)
+1
-0.33
The ideal OP-AMP circuit shown in the Figure produces output voltage $V_o=x$ when the Switch, $S$, is open.
Which of the options represents the output voltage when S is closed?
2
GATE ECE 2026
MCQ (Single Correct Answer)
+1
-0.33
Consider the circuit shown in the Figure with $V_i=3 \mathrm{~V}$ and $V_{c c}=12 \mathrm{~V}$. Assume $V_{B E}=0.7 \mathrm{~V}$ and $\beta_{\mathrm{dc}}=99$ for the BJT.
Which of the following options is the correct value of the current $I_o$ ?
3
GATE ECE 2025
MCQ (More than One Correct Answer)
+1
-0
Which of the following statements is/are TRUE with respect to an ideal opamp?
4
GATE ECE 2022
MCQ (More than One Correct Answer)
+1
-0
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 Subjects
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Control Systems
Engineering Mathematics
Analog Circuits
Network Theory
Electromagnetics
Electronic Devices and VLSI
Digital Circuits
Microprocessors
Signals and Systems
Discrete Time Signal Fourier Series Fourier Transform Continuous Time Signal Laplace Transform Fourier Transform Discrete Fourier Transform and Fast Fourier Transform Representation of Continuous Time Signal Fourier Series Discrete Time Linear Time Invariant Systems Transmission of Signal Through Continuous Time LTI Systems Transmission of Signal Through Discrete Time Lti Systems Miscellaneous Continuous Time Linear Invariant System Discrete Time Signal Z Transform Sampling
Communications
General Aptitude