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Recent questions tagged electric-circuits

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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 $\...
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2 2 answers
528
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GATE Electrical 2026 | Question: 14
For the circuit shown, which one of the following options correctly identifies the Thevenin's equivalent parameters between nodes Y and Z?$\mathrm{V}_{\mathrm{TH}}=100 \m...
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105
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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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80
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GATE Electrical 2026 | Question: 16
A single-phase voltage source $v_{s}=325 \sin (2 \pi 50 t) \mathrm{V}$ delivers a current, $i=12 \sin (2 \pi 50 t)+9 \sin (2 \pi 150 t)$ A to a load.The load power factor...
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89
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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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87
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GATE Electrical 2026 | Question: 24
Consider the circuit shown. Assume that the diode $D$ is ideal. The supply voltage $v_{s}=325 \sin (2 \pi 50 t) \mathrm{V}, L=500 ~\mu \mathrm{H}$, and $R=10 ~\Omega$. Th...
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87
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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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GATE Electrical 2026 | Question: 29
In the circuit shown, the phase currents are\[\begin{array}{l}I_{A}=572.812+j 50.115 \mathrm{~A} \\I_{B}=-254.525-j 459.175 \mathrm{~A} \\I_{C}=-207.083+j 444.091 \mathrm...
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90
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GATE Electrical 2026 | Question: 31
A three-phase two-winding transformer has a voltage transformation ratio $\frac{V_{P}}{V_{S}}=0.866+j 0.5$, where $V_{P}$ is the primary side voltage in p.u., and $V_{S}$...
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139
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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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GATE Electrical 2026 | Question: 33
The electrical network shown has an independent voltage source $(10 \mathrm{~V})$ and a current source ( $1 \mathrm{u}(\mathrm{t}) \mathrm{mA}$ ).The voltage across the c...
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165
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GATE Electrical 2026 | Question: 34
The terminal voltage and current of a linear electrical network shown in Figure (a) are given in the table.\[\begin{array}{|c|c|}\hline\text{Terminal voltage } (v_t) & \t...
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149
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GATE Electrical 2026 | Question: 38
Consider the boost converter circuit shown. Assume that the semiconductor devices are ideal. In steady state, the inductor current rises linearly from $0$ A to $6$ A in t...
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69
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GATE Electrical 2026 | Question: 43
A system is represented in state-space form as follows:( $u$ : input, $\mathbf{X}$ : state vector, $y$ : output)\[\begin{array}{c}\dot{\mathbf{x}}=\left[\begin{array}{cc}...
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84
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GATE Electrical 2026 | Question: 47
The resistance values of the Wheatstone bridge shown are: $\mathrm{P}=2000 \Omega, \mathrm{Q}=500 \Omega, \mathrm{R}=3000 \Omega$. The battery voltage $\mathrm{E}=50 \mat...
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64
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GATE Electrical 2026 | Question: 50
Consider the two-port network shown. For maximum power transfer to the resistive load $\left(\mathrm{R}_{\mathrm{L}}\right)$, the value of $\mathrm{R}_{\mathrm{L}}$ shoul...
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94
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GATE Electrical 2026 | Question: 51
Consider the circuit shown. Assume that the diode ( $D$ ) is ideal.Given $v_{s}=100 \sin (2 \pi 50 t) \mathrm{V}, V_{d c}=50 \mathrm{~V}$, and $R=10 \Omega$, the average ...
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439
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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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3 3 answers
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GATE Electrical 2025 | Question: 8
The I-V characteristics of the element between the nodes X and Y is best depicted by 
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355
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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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311
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GATE Electrical 2025 | Question: 21
The maximum percentage error in the equivalent resistance of two parallel-connected resistors of $100 \: \Omega$ and $900 \: \Omega$ with each having a maximum $5 \%$ err...
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590
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GATE Electrical 2025 | Question: 24
In the circuit with ideal devices, the power MOSFET is operated with a duty cycle of $0.4$ in a switching cycle with $I=10 \mathrm{~A}$ and $V=15 \mathrm{~V}$. The power ...
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580
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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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590
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GATE Electrical 2025 | Question: 29
In the circuit, shown below, if the values of $R$ and $C$ are very large, the form of the output voltage for a very high frequency square wave input, is best represented ...
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455
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GATE Electrical 2025 | Question: 37
An ideal sinusoidal voltage source $v(t)=230 \sqrt{2} \sin (2 \pi \times 50 t) \: V$ feeds an ideal inductor $L$ through an ideal SCR with firing angle $\alpha=0^{\circ}$...
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338
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GATE Electrical 2025 | Question: 39
In the system shown below, the generator was initially supplying power to the grid. A temporary LLLG bolted fault occurs at $F$ very close to circuit breaker $1$. The cir...
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223
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GATE Electrical 2025 | Question: 40
An air filled cylindrical capacitor (capacitance $C_{0}$ ) of length $L$, with $a$ and $b$ as its inner and outer radii, respectively, consists of two coaxial conducting ...
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325
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GATE Electrical 2025 | Question: 42
Consider two coupled circuits, having self-inductances $L_{1}$ and $L_{2}$, that carry non-zero currents $I_{1}$ and $I_{2}$, respectively. The mutual inductance between ...
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264
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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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455
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GATE Electrical 2025 | Question: 47
The switch $( S )$ closes at $t=0 \: \mathrm{sec}$. The time, in sec, the capacitor takes to charge to $50\: \mathrm{V}$ is $\_\_\_\_\_\_\_\_$ (round off to one decimal ...
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