Recent questions tagged circuit-analysis

1 1 vote
1 1 answer
429
429 views
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433 views
The ideal $\text{OP-AMP}$ circuit shown in the Figure produces output voltage $V_{o}=x$ when the Switch, $\text{S}$, is open.Which of the options represents the output vo...
1 1 vote
1 1 answer
384
384 views
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 $\beta_{d c}=99$ for the BJT.Which o...
0 0 votes
1 1 answer
397
397 views
The relation between the input current ( $I$ ) and the output voltage ( $V$ ) of a circuit is governed by the equation: $C \dfrac{d V}{d t}=I(t)-m(t)$. The circuit is exc...
3 3 votes
1 1 answer
650
650 views
The output voltage $V_{o}$ (in Volt) for the network given in the Figure is $\_\_\_\_$ .(rounded off to two decimal places) 
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1 1 answer
434
434 views
Consider the circuit shown in the Figure, where the input $v_{i}(t)$ is in Volt.The average power (in $\text{mW}$ ) dissipated in the load resistance of $1 ~\mathrm{k} \O...
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164
164 views
In the given circuit, $L=1 \mu \mathrm{H}$ and $C=1 \mu \mathrm{~F}$. The phasor diagram for $I_{C}$ and $I_{L}$ is also shown. Assume that the phase $\left(\theta_{1}+\t...
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143
143 views
A small signal source, $V_{i}(t)=A \cos \left(10^{5} t\right)+B \sin \left(10^{7} t\right)$ is applied to a BJT circuit as shown in the Figure.Assume zero source resistan...
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0 0 answers
97
97 views
Consider the two-port network as shown in the Figure.Which of the following options provides the correct set of values of $\mathrm{A}, \mathrm{B}, \mathrm{C}$ and $\text{...
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143
143 views
A complex load (in $\Omega$ ) is represented as $\Gamma_{L}=0.5 \angle 30^{\circ}$ on the Smith chart. A co-axial cable with a characteristic impedance of $50 ~\Omega$ is...
1 1 vote
1 1 answer
248
248 views
A circuit using an ideal $\text{OP-AMP}$ is shown in the Figure.Which of the following options gives the correct value of the current $I_{X}$?$2.0$ mA$1.5$ mA$3.0$ mA$0$ ...
0 0 votes
1 1 answer
316
316 views
Consider an ideal OP-AMP circuit as shown in the Figure.The resistances $R_{1}=R_{2}=R_{3}=R_{4}=50 \mathrm{~k} \Omega$.The magnitude of the closed loop gain is $\_\_\_\_...
0 0 votes
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111
111 views
12 1ohm resistors are connected in cubic configuration as shown in figure. Find the Req between A and CFigure
3 3 votes
3 3 answers
2.3k
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Consider a part of an electrical network as shown below. Some node voltages, and the current flowing through the $3 \Omega$ resistor are as indicated.The voltage (in Volt...
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755
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Let $i_{C}, i_{L}$, and $i_{R}$ be the currents flowing through the capacitor, inductor, and resistor, respectively, in the circuit given below. The AC admittances are gi...
1 1 vote
1 1 answer
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917 views
A simplified small-signal equivalent circuit of a BJT-based amplifier is given below.The small-signal voltage gain $V_{o} / V_{S}$ (in $\mathrm{V} / \mathrm{V})$ is $\_\_...
0 0 votes
0 0 answers
631
631 views
The ideal BJT in the circuit given below is biased in the active region with a $\beta$ of $100$.If $I_{B}$ is $10 \: \mu \mathrm{A}$, then $V_{C E}$ (in Volts, rounded of...
1 1 vote
1 1 answer
724
724 views
All the components in the bandpass filter given below are ideal. The lower $-3$ dB frequency of the filter is $1$ MHz.The upper $-3$ dB frequency (in MHz , rounded off to...
0 0 votes
1 1 answer
677
677 views
In the circuit below, $M_{1}$ is an ideal AC voltmeter and $M_{2}$ is an ideal AC ammeter. The source voltage (in Volts) is $v_{s}(t)=100 \cos (200 t)$.What should be the...
0 0 votes
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716
716 views
The $Z$-parameter matrix of a two port network relates the port voltages and port currents as follows:$$ \left[\begin{array}{l} V_{1} \\ V_{2} \end{array}\right]=Z\left[\...
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375
375 views
The identical MOSFETs $M_{1}$ and $M_{2}$ in the circuit given below are ideal and biased in the saturation region. $\mathrm{M}_{1}$ and $\mathrm{M}_{2}$ have a transcond...
0 0 votes
1 1 answer
1.6k
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A positive-edge-triggered sequential circuit is shown below. There are no timing violations in the circuit. Input $P 0$ is set to logic '$0$ ' and $P 1$ is set to logic '...
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0 0 answers
522
522 views
In the circuit shown, the identical transistors $\text{Q1}$ and $\text{Q2}$ are biased in the active region with $\beta=120$. The Zener diode is in the breakdown region w...
0 0 votes
0 0 answers
445
445 views
An electric field of $0.01 \mathrm{~V} / \mathrm{m}$ is applied along the length of a copper wire of circular cross-section with diameter $1 \: \mathrm{mm}$. Copper has a...
1 1 vote
0 0 answers
557
557 views
All the diodes in the circuit given below are ideal.Which of the following plots is/are correct when $V_{I}$ (in Volts) is swept from $-M$ to $M$?
0 0 votes
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360
360 views
A $50 \Omega$ lossless transmission line is terminated with a load $\mathrm{Z}_{\mathrm{L}}$ of $(50-\mathrm{j} 75) \Omega$.If the average incident power on the line is $...
0 0 votes
1 1 answer
411
411 views
Two resistors are connected in a circuit loop of area $5 \mathrm{~m}^{2}$, as shown in the figure below. The circuit loop is placed on the $x-y$ plane.When a time-varying...
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471
471 views
The current flowing through the resistance R in the circuit in the figure has the form Pcos4t Gate ece 2003
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1.0k
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​​​​​The opamps in the circuit shown are ideal, but have saturation voltages of $\pm 10 \mathrm{~V}$.Assume that the initial inductor current is $0 \mathrm{~A}$. The inpu...
1 1 vote
0 0 answers
635
635 views
In the network shown below, maximum power is to be transferred to the load $R_{L}$.The value of $R_{L}$ (in $\Omega$ ) is $\_\_\_\_\_\_\_$.