Highest voted questions in Others / GO Electronics

1 votes

0 answers

241

GATE ECE 2008 | Question: 39
A certain system has transfer function $G(s)=\dfrac{s+8}{s^{2}+\alpha s-4}$, where $\alpha$ is a parameter. Consider the standard negative unity feedback configuration as shown below. Which of the following statements is true? The closed loop ... , the closed loop system is stable. The closed loop system is stable for all values of $\alpha$, both positive and negative.

A certain system has transfer function $G(s)=\dfrac{s+8}{s^{2}+\alpha s-4}$, where $\alpha$ is a parameter. Consider the standard negative unity feedback configuration as...

admin

46.4k points

330 views

admin asked Sep 17, 2022

1 votes

0 answers

242

GATE ECE 2008 | Question: 40
A signal flow graph of a system is given below. The set of equations that correspond to this signal flow graph is ...

A signal flow graph of a system is given below.The set of equations that correspond to this signal flow graph is$\dfrac{d}{d t}\left(\begin{array}{l}x_{1} \\ x_{2} \\ x_{...

admin

46.4k points

57 views

admin asked Sep 17, 2022

1 votes

0 answers

243

GATE ECE 2008 | Question: 41
The number of open right half plane poles of $G(s)=\dfrac{10}{s^{5}+2 s^{4}+3 s^{3}+6 s^{2}+5 s+3}$ is $0$ $1$ $2$ $3$

The number of open right half plane poles of $G(s)=\dfrac{10}{s^{5}+2 s^{4}+3 s^{3}+6 s^{2}+5 s+3}$ is$0$$1$$2$$3$

admin

46.4k points

36 views

admin asked Sep 17, 2022

1 votes

0 answers

244

GATE ECE 2008 | Question: 42
The magnitude of frequency response of an underdamped second order system is $5$ at $0 \; \mathrm{rad} / \mathrm{sec}$ and peaks to $\dfrac{10}{\sqrt{3}}$ at $5 \sqrt{2} \; \mathrm{rad} / \mathrm{sec}$. The transfer function of the system is $\frac{500}{s^{2}+10 s+100}$ $\frac{375}{s^{2}+5 s+75}$ $\frac{720}{s^{2}+12 s+144}$ $\frac{1125}{s^{2}+25 s+225}$

The magnitude of frequency response of an underdamped second order system is $5$ at $0 \; \mathrm{rad} / \mathrm{sec}$ and peaks to $\dfrac{10}{\sqrt{3}}$ at $5 \sqrt{2} ...

admin

46.4k points

54 views

admin asked Sep 17, 2022

1 votes

0 answers

245

GATE ECE 2008 | Question: 43
$\text{Group I}$ gives two possible choices for the impedance $\mathrm{Z}$ in the diagram. The circuit elements in $\mathrm{Z}$ satisfy the condition $R_{2} C_{2}>R_{1} C_{1}$. The transfer function $\dfrac{V_{o}}{V_{i}}$ ... $\text{Q-1, R-2}$ $\text{Q-1, R-3}$ $\text{Q-2, R-3}$ $\text{Q-3, R-2}$

$\text{Group I}$ gives two possible choices for the impedance $\mathrm{Z}$ in the diagram. The circuit elements in $\mathrm{Z}$ satisfy the condition $R_{2} C_{2}>R_{1} C...

admin

46.4k points

70 views

admin asked Sep 17, 2022

1 votes

0 answers

246

GATE ECE 2008 | Question: 44
For the circuit shown in the following figure, transistors $\text{M1}$ and $\text{M2}$ are identical $\text{NMOS}$ transistors. Assume that $\mathrm{M} 2$ is in saturation and the output is unloaded. The current $I_{X}$ is related to $I_{\text {bias }}$ ... $I_{X}=I_{\text {bias }}-\left(V_{D D}-\frac{V_{\text {out}}}{R_{E}}\right)$

For the circuit shown in the following figure, transistors $\text{M1}$ and $\text{M2}$ are identical $\text{NMOS}$ transistors. Assume that $\mathrm{M} 2$ is in saturatio...

admin

46.4k points

38 views

admin asked Sep 17, 2022

1 votes

0 answers

247

GATE ECE 2008 | Question: 45
The measured transconductance $g_{m}$ of an $\text{NMOS}$ transistor operating in the linear region is plotted against the gate voltage $V_{G}$ at a constant drain voltage $V_{D}$. Which of the following figures represents the expected dependence of $g_{m}$ on $V_{G}?$

The measured transconductance $g_{m}$ of an $\text{NMOS}$ transistor operating in the linear region is plotted against the gate voltage $V_{G}$ at a constant drain voltag...

admin

46.4k points

69 views

admin asked Sep 17, 2022

1 votes

0 answers

248

GATE ECE 2008 | Question: 46
Consider the following circuit using an ideal $\text{OPAMP}$. The $\text{I-V}$ characteristics of the diode is described by the relation $I=I_{0}\left(e^{\frac{V}{V_{T}}}-1\right)$ where $V_{T}=25 \; \mathrm{mV}, I_{0}=1 \; \mu \mathrm{A}$ and $\mathrm{V}$ is the ... $V_{o}$ is $0 \mathrm{~V}$ $0.1 \mathrm{~V}$ $0.7 \mathrm{~V}$ $1.1 \mathrm{~V}$

Consider the following circuit using an ideal $\text{OPAMP}$. The $\text{I-V}$ characteristics of the diode is described by the relation $I=I_{0}\left(e^{\frac{V}{V_{T}}}...

admin

46.4k points

37 views

admin asked Sep 17, 2022

1 votes

0 answers

249

GATE ECE 2008 | Question: 47
The OPAMP circuit shown above represents a high pass filter low pass filter band pass filter band reject filter

The OPAMP circuit shown above represents ahigh pass filterlow pass filterband pass filterband reject filter

admin

46.4k points

26 views

admin asked Sep 17, 2022

1 votes

0 answers

250

GATE ECE 2008 | Question: 48
Two identical $\text{NMOS}$ transistors $\text{M1}$ and $\text{M2}$ are connected as shown below. $\mathrm{V}_{\text {bias }}$ is chosen so that both transistors are in saturation. The equivalent $g_{m}$ ... transistors nearly equal to the $g_{m}$ of $\mathrm{Ml}$ nearly equal to $g_{m} / g_{o}$ of $\mathrm{M} 2$

Two identical $\text{NMOS}$ transistors $\text{M1}$ and $\text{M2}$ are connected as shown below. $\mathrm{V}_{\text {bias }}$ is chosen so that both transistors are in s...

admin

46.4k points

43 views

admin asked Sep 17, 2022

1 votes

0 answers

251

GATE ECE 2008 | Question: 49
An $8085$ executes the following instructions $\begin{array}{lll} 2710 & \text { LXI} & \text{H,} & \text{30A0H } \\ 2713 & \text { DAD} & \text{H } \\ 2714 & \text { PCHL } \end{array}$ All addresses and constants are in Hex. ... $ \begin{array}{} \mathrm{PC}=6140 \mathrm{H} \\ \mathrm{HL}=2715 \mathrm{H} \end{array}$

An $8085$ executes the following instructions$\begin{array}{lll}2710 & \text { LXI} & \text{H,} & \text{30A0H } \\2713 & \text { DAD} & \text{H } \\2714 & \text { PCHL ...

admin

46.4k points

43 views

admin asked Sep 17, 2022

1 votes

0 answers

252

GATE ECE 2008 | Question: 50
An astable multivibrator circuit using $\text{IC 555}$ timer is shown below. Assume that the circuit is oscillating steadily. The voltage $V_{C}$ across the capacitor varies between $3 \mathrm{V}$ to $5 \mathrm{V}$ $3 \mathrm{V}$ to $6 \mathrm{V}$ $3.6 \mathrm{V}$ to $6 \mathrm{V}$ $3.6 \mathrm{V}$ to $5 \mathrm{V}$

An astable multivibrator circuit using $\text{IC 555}$ timer is shown below. Assume that the circuit is oscillating steadily.The voltage $V_{C}$ across the capacitor vari...

admin

46.4k points

59 views

admin asked Sep 17, 2022

1 votes

0 answers

253

GATE ECE 2008 | Question: 51
Silicon is doped with boron to a concentration of $4 \times 10^{17}$ atoms $/ \mathrm{cm}^{3}$. Assume the intrinsic carrier concentration of silicon to be $1.5 \times 10^{10} / \mathrm{cm}^{3}$ and the value of $\dfrac{k T}{q}$ to be $25 \; \mathrm{mV}$ ... $0.13 \; \mathrm{eV}$ goes down by $0.427 \; \mathrm{eV}$ goes up by $0.427 \; \mathrm{eV}$

Silicon is doped with boron to a concentration of $4 \times 10^{17}$ atoms $/ \mathrm{cm}^{3}$. Assume the intrinsic carrier concentration of silicon to be $1.5 \times 10...

admin

46.4k points

32 views

admin asked Sep 17, 2022

1 votes

0 answers

254

GATE ECE 2008 | Question: 52
The cross section of a $\text{JFET}$ is shown in the following figure. Let $V_{G}$ be $-2 \mathrm{~V}$ and let $V_{P}$ be the initial pinch-off voltage. If the width $\mathrm{W}$ is doubled (with other geometrical parameters and doping levels remaining the same), then ... $\frac{1-\left(2 / \sqrt{V_{p}}\right)}{1-\left(1 /\left(2 \sqrt{V_{p}}\right)\right)}$

The cross section of a $\text{JFET}$ is shown in the following figure. Let $V_{G}$ be $-2 \mathrm{~V}$ and let $V_{P}$ be the initial pinch-off voltage. If the width $\ma...

admin

46.4k points

27 views

admin asked Sep 17, 2022

1 votes

0 answers

255

GATE ECE 2008 | Question: 53
Consider the Schmidt trigger circuit shown below. A triangular wave which goes from $-12 \mathrm{~V}$ to $12 \mathrm{~V}$ is applied to the inverting input of the $\text{OPAMP}$. Assume that the output of the $\text{OPAMP}$ swings from $+15 \mathrm{~V}$ to $-15 \mathrm{~V}$. ... $+7.5 \mathrm{~V}$ $-5 \mathrm{~V}$ and $+5 \mathrm{~V}$ $0 \mathrm{~V}$ and $5 \mathrm{~V}$

Consider the Schmidt trigger circuit shown below.A triangular wave which goes from $-12 \mathrm{~V}$ to $12 \mathrm{~V}$ is applied to the inverting input of the $\text{O...

admin

46.4k points

31 views

admin asked Sep 17, 2022

1 votes

0 answers

256

GATE ECE 2008 | Question: 54
The logic function implemented by the following circuit at the terminal $\text{OUT}$ is $\text{P NOR Q}$ $\text{P NAND Q}$ $\text{P OR Q}$ $\text{P AND Q}$

The logic function implemented by the following circuit at the terminal $\text{OUT}$ is$\text{P NOR Q}$$\text{P NAND Q}$$\text{P OR Q}$$\text{P AND Q}$

admin

46.4k points

30 views

admin asked Sep 17, 2022

1 votes

0 answers

257

GATE ECE 2008 | Question: 55
Consider the following assertions. $\text{S1:}$ For Zener effect to occur, a very abrupt junction is required. $\text{S2:}$ For quantum tunneling to occur, a very narrow energy barrier is required. Which of the following is correct? Only $\text{S2}$ ... true and $\mathrm{S} 2$ is a reason for $\mathrm{S} 1$ Both $\text{S1}$ and $\text{S2}$ are false

Consider the following assertions.$\text{S1:}$ For Zener effect to occur, a very abrupt junction is required.$\text{S2:}$ For quantum tunneling to occur, a very narrow en...

admin

46.4k points

30 views

admin asked Sep 17, 2022

1 votes

0 answers

258

GATE ECE 2008 | Question: 56
The two numbers represented in signed $2\text{'s}$ complement form are $\mathrm{P}=11101101$ and $\mathrm{Q}=11100110$. If $\mathrm{Q}$ is subtracted from $\mathrm{P}$, the value obtained in signed $2\text{'s}$ complement form is $100000111$ $00000111$ $11111001$ $111111001$

The two numbers represented in signed $2\text{'s}$ complement form are $\mathrm{P}=11101101$ and $\mathrm{Q}=11100110$. If $\mathrm{Q}$ is subtracted from $\mathrm{P}$, t...

admin

46.4k points

46 views

admin asked Sep 17, 2022

1 votes

0 answers

259

GATE ECE 2008 | Question: 57
Which of the following Boolean Expressions correctly represents the relation between $\text{P, Q, R}$ and $\mathrm{M}_{1}?$ $\text{M}_{1} = \text{(P OR Q) XOR R}$ $\text{M}_{1} = \text{(P AND Q) XOR R}$ $\text{M}_{1} = \text{(P NOR Q) XOR R}$ $\text{M}_{1} = \text{(P XOR Q) XOR R}$

Which of the following Boolean Expressions correctly represents the relation between $\text{P, Q, R}$ and $\mathrm{M}_{1}?$ $\text{M}_{1} = \text{(P OR Q) XOR R}$$\text{M...

admin

46.4k points

30 views

admin asked Sep 17, 2022

1 votes

0 answers

260

GATE ECE 2008 | Question: 58
For the circuit shown in the following figure, $\mathrm{I}_{0}\text{-}\mathrm{I}_{3}$ are inputs to the $4: 1$ multiplexer. $\mathrm{R~(MSB)}$ and $\mathrm{S}$ are control bits. The output $\text{Z}$ ...

For the circuit shown in the following figure, $\mathrm{I}_{0}\text{-}\mathrm{I}_{3}$ are inputs to the $4: 1$ multiplexer. $\mathrm{R~(MSB)}$ and $\mathrm{S}$ are contro...

admin

46.4k points

141 views

admin asked Sep 17, 2022

1 votes

0 answers

261

GATE ECE 2008 | Question: 59
For each of the positive edge-triggered $\text{J-K}$ flip flop used in the following figure, the propagation delay is $\Delta T$. Which of the following waveforms correctly represents the output at $\mathrm{Q}_{1}?$

For each of the positive edge-triggered $\text{J-K}$ flip flop used in the following figure, the propagation delay is $\Delta T$.Which of the following waveforms correctl...

admin

46.4k points

32 views

admin asked Sep 17, 2022

1 votes

0 answers

262

GATE ECE 2008 | Question: 60
For the circuit shown in the figure, $\mathrm{D}$ has a transition from $0$ to $1$ after $\text{CLK}$ changes from $1$ to $0 .$ Assume gate delays to be negligible. Which of the following statements is true? $\text{Q}$ goes to $1$ at the $\text{CLK}$ transition ... $1.$ $\text{Q}$ goes to $0$ at the $\text{CLK}$ transition and goes to $1$ when $\mathrm{D}$ goes to $1.$

For the circuit shown in the figure, $\mathrm{D}$ has a transition from $0$ to $1$ after $\text{CLK}$ changes from $1$ to $0 .$ Assume gate delays to be negligible.Which ...

admin

46.4k points

34 views

admin asked Sep 17, 2022

1 votes

0 answers

263

GATE ECE 2008 | Question: 61
A rectangular waveguide of internal dimensions ( $\mathrm{a}=4 \mathrm{~cm}$ and $\mathrm{b}=3 \mathrm{~cm}$ ) is to be operated in $\mathrm{TE}_{11}$ mode. The minimum operating frequency is $6.25 \mathrm{~GHz}$ $6.0 \mathrm{~GHz}$ $5.0 \mathrm{~GHz}$ $3.75 \mathrm{~GHz}$

A rectangular waveguide of internal dimensions ( $\mathrm{a}=4 \mathrm{~cm}$ and $\mathrm{b}=3 \mathrm{~cm}$ ) is to be operated in $\mathrm{TE}_{11}$ mode. The minimum o...

admin

46.4k points

43 views

admin asked Sep 17, 2022

1 votes

0 answers

264

GATE ECE 2008 | Question: 62
One end of a loss-less transmission line having the characteristic impedance of $75 \; \Omega$ and length of $1 \mathrm{~cm}$ is short-circuited. At $3 \; \mathrm{GHz}$, the input impedance at the other end of the transmission line is $0$ Resistive Capacitive Inductive

One end of a loss-less transmission line having the characteristic impedance of $75 \; \Omega$ and length of $1 \mathrm{~cm}$ is short-circuited. At $3 \; \mathrm{GHz}$, ...

admin

46.4k points

34 views

admin asked Sep 17, 2022

1 votes

0 answers

265

GATE ECE 2008 | Question: 63
A uniform plane wave in the free space is normally incident on an infinitely thick dielectric slab (dielectric constant $\varepsilon_{r}=9$ ). The magnitude of the reflection coefficient is $0$ $0.3$ $0.5$ $0.8$

A uniform plane wave in the free space is normally incident on an infinitely thick dielectric slab (dielectric constant $\varepsilon_{r}=9$ ). The magnitude of the reflec...

admin

46.4k points

55 views

admin asked Sep 17, 2022

1 votes

0 answers

266

GATE ECE 2008 | Question: 64
In the design of a single mode step index optical fiber close to upper cut-off, the single-mode operation is $\text{NOT}$ preserved if radius as well as operating wavelength are halved radius as well as operating wavelength are doubled radius is halved and operating wavelength is doubled radius is doubled and operating wavelength is halved

In the design of a single mode step index optical fiber close to upper cut-off, the single-mode operation is $\text{NOT}$ preserved ifradius as well as operating waveleng...

admin

46.4k points

42 views

admin asked Sep 17, 2022

1 votes

0 answers

267

GATE ECE 2008 | Question: 65
At $20 \; \mathrm{GHz}$, the gain of a parabolic dish antenna of $1$ meter diameter and $70 \%$ efficiency is $15 \mathrm{~dB}$ $25 \mathrm{~dB}$ $35 \mathrm{~dB}$ $45 \mathrm{~dB}$

At $20 \; \mathrm{GHz}$, the gain of a parabolic dish antenna of $1$ meter diameter and $70 \%$ efficiency is$15 \mathrm{~dB}$$25 \mathrm{~dB}$$35 \mathrm{~dB}$$45 \mathr...

admin

46.4k points

31 views

admin asked Sep 17, 2022

1 votes

0 answers

268

GATE ECE 2008 | Question: 66
Noise with double-sided power spectral density of $\mathrm{K}$ over all frequencies is passed through a $\text{RC}$ low pass filter with $3 \mathrm{~dB}$ cut-off frequency of $f_{c}$. The noise power at the filter output is $\mathrm{K}$ $\mathrm{K} f_{c}$ $\mathrm{K} \pi f_{c}$ $\infty$

Noise with double-sided power spectral density of $\mathrm{K}$ over all frequencies is passed through a $\text{RC}$ low pass filter with $3 \mathrm{~dB}$ cut-off frequenc...

admin

46.4k points

28 views

admin asked Sep 17, 2022

1 votes

0 answers

269

GATE ECE 2008 | Question: 67
Consider a Binary Symmetric Channel (BSC) with probability of error being $p$. To transmit a bit, say $1,$ we transmit a sequence of three $1\text{s}.$ The receiver will interpret the received sequence to represent $1$ if at least two bits are $1.$ The probability that the transmitted bit will be ... is $p^{3}+3 p^{2}(1-p)$ $p^{3}$ $(1-p)^{3}$ $p^{3}+p^{2}(1-p)$

Consider a Binary Symmetric Channel (BSC) with probability of error being $p$. To transmit a bit, say $1,$ we transmit a sequence of three $1\text{s}.$ The receiver will ...

admin

46.4k points

41 views

admin asked Sep 17, 2022

1 votes

0 answers

270

GATE ECE 2008 | Question: 68
Four messages band limited to $\text{W, W, 2W}$ and $\text{3W}$ respectively are to be multiplexed using $\text{Time Division Multiplexing (TDM)}.$ The minimum bandwidth required for transmission of this $\text{TDM}$ signal is $\mathrm{W}$ $3 \mathrm{W}$ $6 \mathrm{W}$ $7 \mathrm{W}$

Four messages band limited to $\text{W, W, 2W}$ and $\text{3W}$ respectively are to be multiplexed using $\text{Time Division Multiplexing (TDM)}.$ The minimum bandwidth ...

admin

46.4k points

29 views

admin asked Sep 17, 2022

1 votes

0 answers

271

GATE ECE 2008 | Question: 69
Consider the frequency modulated signal $10 \cos \left[2 \pi \times 10^{5} t+5 \sin (2 \pi \times 1500 t)+7.5 \sin (2 \pi \times 1000 t)\right]$ with carrier frequency of $10^{5} \mathrm{~Hz}$. The modulation index is $12.5$ $10$ $7.5$ $5$

Consider the frequency modulated signal $10 \cos \left[2 \pi \times 10^{5} t+5 \sin (2 \pi \times 1500 t)+7.5 \sin (2 \pi \times 1000 t)\right]$ with carrier frequency of...

admin

46.4k points

45 views

admin asked Sep 17, 2022

1 votes

0 answers

272

GATE ECE 2008 | Question: 70
The signal $\cos \omega_{c} t+0.5 \cos \omega_{m} t \sin \omega_{c} t$ is $\mathrm{FM}$ only $\mathrm{AM}$ only both $\mathrm{AM}$ and $\mathrm{FM}$ neither $\mathrm{AM}$ nor $\mathrm{FM}$

The signal $\cos \omega_{c} t+0.5 \cos \omega_{m} t \sin \omega_{c} t$ is$\mathrm{FM}$ only$\mathrm{AM}$ onlyboth $\mathrm{AM}$ and $\mathrm{FM}$neither $\mathrm{AM}$ nor...

admin

46.4k points

31 views

admin asked Sep 17, 2022

1 votes

0 answers

273

GATE ECE 2008 | Question: 71
A speech signal, band limited to $4 \; \mathrm{kHz}$ and peak voltage varying between $+5 \mathrm{V}$ and $-5 \mathrm{V}$, is sampled at the Nyquist rate. Each sample is quantized and represented by $8$ bits. If the bits $0$ and $1$ are transmitted using ... free transmission is $64 \; \mathrm{kHz}$ $32 \; \mathrm{kHz}$ $8 \; \mathrm{kHz}$ $4 \; \mathrm{kHz}$

A speech signal, band limited to $4 \; \mathrm{kHz}$ and peak voltage varying between $+5 \mathrm{V}$ and $-5 \mathrm{V}$, is sampled at the Nyquist rate. Each sample is ...

admin

46.4k points

39 views

admin asked Sep 17, 2022

1 votes

0 answers

274

GATE ECE 2008 | Question: 72
A speech signal, band limited to $4 \; \mathrm{kHz}$ and peak voltage varying between $+5 \mathrm{V}$ and $-5 \mathrm{V}$, is sampled at the Nyquist rate. Each sample is quantized and represented by $8$ bits. Assuming the signal to be uniformly distributed ... ratio at the quantizer output is $16 \mathrm{~dB}$ $32 \mathrm{~dB}$ $48 \mathrm{~dB}$ $64 \mathrm{~dB}$

A speech signal, band limited to $4 \; \mathrm{kHz}$ and peak voltage varying between $+5 \mathrm{V}$ and $-5 \mathrm{V}$, is sampled at the Nyquist rate. Each sample is ...

admin

46.4k points

43 views

admin asked Sep 17, 2022

1 votes

0 answers

275

GATE ECE 2008 | Question: 73
A speech signal, band limited to $4 \; \mathrm{kHz}$ and peak voltage varying between $+5 \mathrm{V}$ and $-5 \mathrm{V}$, is sampled at the Nyquist rate. Each sample is quantized and represented by $8$ bits. The number of quantization levels required to reduce the quantization noise by a factor of $4$ would be $1024$ $512$ $256$ $64$

A speech signal, band limited to $4 \; \mathrm{kHz}$ and peak voltage varying between $+5 \mathrm{V}$ and $-5 \mathrm{V}$, is sampled at the Nyquist rate. Each sample is ...

admin

46.4k points

69 views

admin asked Sep 17, 2022

1 votes

0 answers

276

GATE ECE 2008 | Question: 74
The following series $\text{RLC}$ circuit with zero initial conditions is excited by a unit impulse function $\delta(t)$. For $t>0$, the output voltage $V_{c}(t)$ is $\frac{2}{\sqrt{3}}\left(e^{-\frac{1}{2} t}-e^{-\frac{\sqrt{3}}{2} t}\right)$ ... $\frac{2}{\sqrt{3}} e^{-\frac{1}{2} t} \sin \left(\frac{\sqrt{3}}{2} t\right)$

The following series $\text{RLC}$ circuit with zero initial conditions is excited by a unit impulse function $\delta(t)$.For $t>0$, the output voltage $V_{c}(t)$ is$\frac...

admin

46.4k points

30 views

admin asked Sep 17, 2022

1 votes

0 answers

277

GATE ECE 2008 | Question: 75
The following series $\text{RLC}$ circuit with zero initial conditions is excited by a unit impulse function $\delta(t)$. For $t>0$, the voltage across the resistor is $\frac{1}{\sqrt{3}}\left(e^{-\frac{\sqrt{3}}{2} t}-e^{-\frac{1}{2} t}\right)$ ... $\frac{2}{\sqrt{3}} e^{-\frac{1}{2} t} \cos \left(\frac{\sqrt{3} \;t}{2}\right)$

The following series $\text{RLC}$ circuit with zero initial conditions is excited by a unit impulse function $\delta(t)$. For $t>0$, the voltage across the resistor is$\f...

admin

46.4k points

38 views

admin asked Sep 17, 2022

1 votes

0 answers

278

GATE ECE 2008 | Question: 76
A two-port network shown below is excited by external $dc$ sources. The voltages and the currents are measured with voltmeters $\mathrm{V}_{1}, \mathrm{~V}_{2}$ and ammeters $\mathrm{A}_{1}, \mathrm{~A}_{2}$ (all assumed to be ideal), as indicated. Under following ... $\left[\begin{array}{ll}4.5 & 1.5 \\ 1.5 & 4.5\end{array}\right]$

A two-port network shown below is excited by external $dc$ sources. The voltages and the currents are measured with voltmeters $\mathrm{V}_{1}, \mathrm{~V}_{2}$ and ammet...

admin

46.4k points

23 views

admin asked Sep 17, 2022

1 votes

0 answers

279

GATE ECE 2008 | Question: 77
A two-port network shown below is excited by external $dc$ sources. The voltages and the currents are measured with voltmeters $\mathrm{V}_{1}, \mathrm{~V}_{2}$ and ammeters $\mathrm{A}_{1}, \mathrm{~A}_{2}$ (all assumed to be ideal), as indicated. Under following ... $\left[\begin{array}{cc}3 & 1 \\ -3 & -0.67\end{array}\right]$

A two-port network shown below is excited by external $dc$ sources. The voltages and the currents are measured with voltmeters $\mathrm{V}_{1}, \mathrm{~V}_{2}$ and ammet...

admin

46.4k points

31 views

admin asked Sep 17, 2022

1 votes

0 answers

280

GATE ECE 2008 | Question: 78
In the following network, the switch is closed at $t=0$ - and the sampling starts from $t=0$. The sampling frequency is $10 \mathrm{~Hz}$. The samples $x(n) \quad(n=0,1,2, \cdots \cdots)$ are given by $5\left(1-e^{-0.05 n}\right)$ $5 e^{-0.05 n}$ $5\left(1-e^{-5 n}\right)$ $5 e^{-5 n}$

In the following network, the switch is closed at $t=0$ - and the sampling starts from $t=0$. The sampling frequency is $10 \mathrm{~Hz}$.The samples $x(n) \quad(n=0,1,2,...

admin

46.4k points

35 views

admin asked Sep 17, 2022