Electronics and Communication Engineering
2024 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE ECE 2024 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 49–51 of 65. Imported answers require review unless explicitly marked reviewed.
Question 49
Open questionECMCQ2 marksNeeds review
The opamps in the circuit shown are ideal, but have saturation voltages of ±10 V.
Assume that the initial inductor current is 0 A. The input voltage (
) is a triangular signal with peak voltages of ±2 V and time period of 8 μs. Which one of the following statements is true?Your answerChoose one option.
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Open questionECMCQ2 marksNeeds review
In the circuit below, the opamp is ideal.
[Circuit diagram: an ideal op-amp relaxation oscillator with resistors R, R₁ and R, capacitors C and C, and ground connections.] If the circuit is to show sustained oscillations, the respective values of
and the corresponding frequency of oscillation are ______.Your answerChoose one option.
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Open questionECMCQ2 marksNeeds review
In the circuit shown below, the transistors
and
are biased in saturation. Their small signal transconductances are
and
respectively. Neglect body effect, channel length modulation and intrinsic device capacitances.
Assuming that capacitor
is a short circuit for AC analysis, the exact magnitude of small signal voltage gain
is ______.Your answerChoose one option.
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