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Recent questions tagged analog-and-digital-electronics

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GATE Electrical 2026 | Question: 13
A circuit with ideal elements is shown.Which one of the following options correctly identifies all the linear elements in the circuit?$\text{R}$ only$\text{R, L,}$ and $\...
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99
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GATE Electrical 2026 | Question: 15
Refer to the four circuits shown.Which one of the following options for $\mathrm{k}_{1}, \mathrm{k}_{2}, \mathrm{k}_{3}$, and $\mathrm{k}_{4}$ makes all of them realizabl...
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81
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GATE Electrical 2026 | Question: 18
Consider the circuit shown in Figure (a). A gate pulse $v_{g}$ is applied between time instants $t_{0}$ and $t_{1}$. After $t_{1}$, during the $\text{MOSFET}$ turn $\text...
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117
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GATE Electrical 2026 | Question: 23
In the linear regulator circuit shown, the base to emitter voltage $\mathrm{V}_{\mathrm{BE}}$ of the BJT is $0.6$ V. The Zener diode clamps the base voltage to $5.4$ V. I...
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80
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GATE Electrical 2026 | Question: 27
In the circuit shown, the open loop gain of the operational amplifier is $\mathrm{A}_{0}=105$.What is the voltage gain of the circuit?(Round off to two decimal places)$-1...
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123
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GATE Electrical 2026 | Question: 32
An electrical component has voltage drop $v=V_{m} \sin (\omega t)$, when the current through it is $i=I_{m} \sin (\omega t-\theta)$.What is the average power dissipated o...
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85
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GATE Electrical 2026 | Question: 35
The digital circuit shown has $3$ inputs $(x, y$, and $z)$.The simplified logical expression for the output (OUT) is:$\bar{x} \overline{y z}$$0$$\bar{x}(y+z)$$1$
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63
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GATE Electrical 2026 | Question: 36
The MOSFET switches shown in the circuit are ideal.Which of the following is the correct option for Boolean logical expression of the output (OUT), and the maximum possib...
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436
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GATE Electrical 2025 | Question: 6
Which one of the following statements is true about the small signal voltage gain of a MOSFET based single stage amplifier?Common source and common gate amplifiers are bo...
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GATE Electrical 2025 | Question: 7
Assuming ideal op-amps, the circuit represents asumming amplifier.difference amplifier.logarithmic amplifier.buffer.
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348
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GATE Electrical 2025 | Question: 9
A nullator is defined as a circuit element where the voltage across the device and the current through the device are both zero. A series combination of a nullator and a ...
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299
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GATE Electrical 2025 | Question: 11
Consider a continuous-time signal$$ x(t)=-t^{2}\{u(t+4)-u(t-4)\}$$where $u(t)$ is the continuous-time unit step function. Let $\delta(t)$ be the continuous-time unit impu...
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286
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GATE Electrical 2025 | Question: 27
A Boolean function is given as\[f=(\bar{u}+\bar{v}+\bar{w}+\bar{x}) \cdot(\bar{u}+\bar{v}+\bar{w}+x) \cdot(\bar{u}+v+\bar{w}+\bar{x}) \cdot(\bar{u}+v+\bar{w}+x)\]The simp...
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570
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GATE Electrical 2025 | Question: 28
In the circuit, $I_{D C}$ is an ideal current source. The transistors $M_{1}$ and $M_{2}$ are assumed to be biased in saturation, wherein $V_{\text {in }}$ is the input s...
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181
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GATE Electrical 2025 | Question: 36
The $3$-phase modulating waveforms $\left(v_{a}(t), v_{b}(t)\right.$ and $\left.v_{c}(t)\right)$, used in sinusoidal PWM in a Voltage Source Inverter (VSI) are$$ \begin{a...
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252
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GATE Electrical 2025 | Question: 46
The op-amps in the following circuit are ideal. The voltage gain of the circuit is $\_\_\_\_\_\_\_\_\_\_\_$ (round off to the nearest integer).
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GATE Electrical 2024 | Question: 13
​​The table lists two instrument transformers and their features:\begin{array}{|l|l|}\hline \text{ Instrument Transformers } &\text{ Features } \\\hline & \text{P}) \tex...
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GATE Electrical 2024 | Question: 14
​​​​Simplified form of the Boolean function\[F(P, Q, R, S)=\bar{P} \bar{Q}+\bar{P} Q S+P \bar{Q} \bar{R} \bar{S}+P \bar{Q} R \bar{S}\]is$\bar{P} S+\bar{Q} \bar{S}$$\bar{P...
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GATE Electrical 2024 | Question: 15
​​​​​In the circuit, the present value of $Z$ is $1$. Neglecting the delay in the combinatorial circuit, the values of $S$ and $Z$, respectively, after the application of...
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1.4k
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GATE Electrical 2024 | Question: 16
​​​​​To obtain the Boolean function $\text{F(X, Y)}=\text{X} \bar{\text{Y}}+\bar{\text{X}}$, the inputs $\text{PQRS}$ in the figure should be$1010$$1110$$0110$$0001$
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957
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GATE Electrical 2024 | Question: 32
​​​​​​A $\text{BJT}$ biasing circuit is shown in the figure, where $V_{B E}=0.7 \mathrm{~V}$ and $\beta=100$. The Quiescent Point values of $V_{C E}$ and $I_{C}$ are resp...
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763
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GATE Electrical 2024 | Question: 51
A difference amplifier is shown in the figure. Assume the op-amp to be ideal. The $\text{CMRR}$ (in $\mathrm{dB}$ ) of the difference amplifier is ___________ (rounded of...
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417
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GATE Electrical 2023 | Question: 27
Consider the $\mathrm{OP} \mathrm{AMP} $ based circuit shown in the figure. Ignore the conduction drops of diodes $\text{D}_{1}$ and $\text{D}_{2}$. All the components a...
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309
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GATE Electrical 2023 | Question: 30
An $8$-bit $\text{ADC}$ converts analog voltage in the range of $0$ to $+5 \mathrm{~V}$ to the corresponding digital code as per the conversion characteristics shown in f...
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940
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GATE Electrical 2023 | Question: 46
Neglecting the delays due to the logic gates in the circuit shown in figure, the decimal equivalent of the binary sequence $\text{[ABCD]}$ of initial logic states, which ...
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GATE Electrical 2023 | Question: 47
In a given $8$-bit general purpose micro-controller there are following flags. $\text{C-Carry, A-Auxiliary Carry, O-Overflow flag, P-Parity}$ ($0$ for even, $1$ for odd) ...
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842
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GATE Electrical 2023 | Question: 49
The Zener diode in circuit has a breakdown voltage of $ 5 \mathrm{~V} \text .$ The current gain $\beta$ of the transistor in the active region in $99.$ Ignore base-emitte...
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714
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GATE Electrical 2022 | Question: 2
For an ideal $\text{MOSFET}$ biased in saturation, the magnitude of the small signal current gain for a common drain amplifier is$0$$1$$100$infinite
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GATE Electrical 2022 | Question: 6
The steady state output ($V_{\text{out}}$), of the circuit shown below, willsaturate to $+V_{DD}$saturate to $-V_{EE}$become equal to $0.1\:V$become equal to $-0.1\:V$
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GATE Electrical 2022 | Question: 15
For the circuit shown below with ideal diodes, the output will be$V_{\text{out}} = V _{\text{in}}$ for $V_{\text{in}} 0$$V_{\text{out}} = V_{\text{in}}$ for $V_{\text{in...
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