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2921
GATE ECE 2004 | Question: 50
In a full-wave rectifier using two ideal diodes, $V_{d i}$ and $V_{i d}$ are the $d c$ ...
In a full-wave rectifier using two ideal diodes, $V_{d i}$ and $V_{i d}$ are the $d c$ and peak values of the voltage respectively across a resistive load. If PIV is the ...
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2922
GATE ECE 2004 | Question: 51
The minimum number of $2$-to-$1$ multiplexers required to realize a $4$-to $1$ mulitiplexer is $1$ $2$ $3$ $4$
The minimum number of $2$-to-$1$ multiplexers required to realize a $4$-to $1$ mulitiplexer is$1$$2$$3$$4$
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2924
GATE ECE 2004 | Question: 77
Two sinusoidal signals of same amplitude and frequencies $10 \; \mathrm{kHz}$ and $10.1 \; \mathrm{kHz}$ are added together. The combined signal is given to an ideal frequency detector. The output of the detector is $0.1 \; \mathrm{kHz}$ sinusoid $20.1 \; \mathrm{kHz}$ sinusoid a linear function of time a constant
Two sinusoidal signals of same amplitude and frequencies $10 \; \mathrm{kHz}$ and $10.1 \; \mathrm{kHz}$ are added together. The combined signal is given to an ideal freq...
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2925
GATE ECE 2004 | Question: 80
Choose the correct one from among the alternatives $\mathrm{A}, \mathrm{B}, \mathrm{C}, \mathrm{D}$ after matching an item from Group $1$ with the most appropriate item in Group $2.$ ... $\text{1-S, 2-P, 3-U, 4-Q}$ $\text{1-U, 2-R, 3-S, 4-Q}$
Choose the correct one from among the alternatives $\mathrm{A}, \mathrm{B}, \mathrm{C}, \mathrm{D}$ after matching an item from Group $1$ with the most appropriate item i...
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2926
GATE ECE 2005 | Question: 42
The $h$ parameters of the circuit shown in the figure are $\left[\begin{array}{cc}0.1 & 0.1 \\ -0.1 & 0.3\end{array}\right]$ $\left[\begin{array}{cc}10 & -1 \\ 1 & 0.05\end{array}\right]$ $\left[\begin{array}{ll}30 & 20 \\ 20 & 20\end{array}\right]$ $\left[\begin{array}{cc}10 & 1 \\ -1 & 0.05\end{array}\right]$
The $h$ parameters of the circuit shown in the figure are$\left[\begin{array}{cc}0.1 & 0.1 \\ -0.1 & 0.3\end{array}\right]$$\left[\begin{array}{cc}10 & -1 \\ 1 & 0.05\end...
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2927
GATE ECE 2005 | Question: 54
The Boolean expression for the truth table shown is ... $\overline{\mathrm{B}}(\mathrm{A}+\mathrm{C})(\overline{\mathrm{A}}+\overline{\mathrm{C}})$
The Boolean expression for the truth table shown is$$\begin{array}{|c|c|c|c|}\hline \mathrm{A} & \mathrm{B} & \mathrm{C} & \mathrm{F} \\\hline 0 & 0 & 0 & 0 \\\hline 0 & ...
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2929
GATE ECE 2005 | Question: 58
What memory address range is $\text{NOT}$ represented by chip $\# \; 1$ and chip $\# \; 2$ in the figure $\text{A}_{0}$ to $\text{A}_{15}$ in this figure are the address lines and $\text{CS}$ means Chip Select. 0100-02FF 1500-16FF F900-FAFF F800-F9FF
What memory address range is $\text{NOT}$ represented by chip $\# \; 1$ and chip $\# \; 2$ in the figure $\text{A}_{0}$ to $\text{A}_{15}$ in this figure are the address ...
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2931
GATE ECE 1995 | Question 2.1
A series $\mathrm{R}-\mathrm{L}-\mathrm{C}$ circuit has a $\mathrm{Q}$ of $100$ and an impedance of $(100+j 0) \Omega$ at its resonant angular frequency of $10^{7}$ radian $/ \mathrm{sec}$. The values of $\text{R}$ and $\text{L}$ are : $\text{R} = $______ ohms, $\text{L} = $_______ ohms.
A series $\mathrm{R}-\mathrm{L}-\mathrm{C}$ circuit has a $\mathrm{Q}$ of $100$ and an impedance of $(100+j 0) \Omega$ at its resonant angular frequency of $10^{7}$ radia...
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2932
GATE ECE 2006 | Question: 41
For the circuit shown in the following figure, the capacitor $C$ is initially uncharged. At $t=0$, the switch $S$ is closed. The voltage $V_{C}$ across the capacitor at $t=1$ millisecond is In the figure shown above, the $\text{OP AMP}$ ... $\nabla$. $0$ Volts $6.3$ Volts $9.45$ Volts $10$ Volts
For the circuit shown in the following figure, the capacitor $C$ is initially uncharged. At $t=0$, the switch $S$ is closed. The voltage $V_{C}$ across the capacitor at $...
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2933
GATE ECE 2006 | Question: 56
The positive values of $\text{“K”}$ and “$a$” so that the system shown in the figure below oscillates at a frequency of $2 \mathrm{rad} / \mathrm{sec}$ respectively are $1,0.75$ $2, 0.75$ $1,1$ $2,2$
The positive values of $\text{“K”}$ and “$a$” so that the system shown in the figure below oscillates at a frequency of $2 \mathrm{rad} / \mathrm{sec}$ respective...
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2934
GATE ECE 2006 | Question: 58
The transfer function of a phase-lead compensator is given by \[G_{c}(s)=\frac{1+3 T s}{1+T s} \text { where } T>0\] The maximum phase-shift provided by such a compensator is $\frac{\pi}{2}$ $\frac{\pi}{3}$ $\frac{\pi}{4}$ $\frac{\pi}{6}$
The transfer function of a phase-lead compensator is given by\[G_{c}(s)=\frac{1+3 T s}{1+T s} \text { where } T>0\]The maximum phase-shift provided by such a compensator ...
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2937
GATE ECE 2007 | Question: 70
A right circularly polarized (RCP) plane wave is incident at an angle of $60^{\circ}$ to the normal, on an air-dielectric interface. If the reflected wave is linearly polarized, the relative dielectric constant $\varepsilon_{r 2}$ is $\sqrt{2}$ $\sqrt{3}$ $2$ $3$
A right circularly polarized (RCP) plane wave is incident at an angle of $60^{\circ}$ to the normal, on an air-dielectric interface. If the reflected wave is linearly pol...
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2938
GATE ECE 1993 | Question 4.7
The waveshape of $\mathrm{V}^{0}$ in the figure will be
The waveshape of $\mathrm{V}^{0}$ in the figure will be
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2939
GATE ECE 1993 | Question 6.1
A network contains linear resistors and ideal voltage sources. If values of all the resistors are doubled, then the voltage across each resistor is halved doubled increased by four times not changed
A network contains linear resistors and ideal voltage sources. If values of all the resistors are doubled, then the voltage across each resistor ishalveddoubledincreased ...
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2940
GATE ECE 1993 | Question 6.11
In a transistor push-pull amplifier there is no $d.c.$ present in the output there is no distortion in the output there are no even harmonics in the output there are no odd harmonics in the output
In a transistor push-pull amplifierthere is no $d.c.$ present in the outputthere is no distortion in the outputthere are no even harmonics in the outputthere are no odd h...
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2951
GATE ECE 2000 | Question 14
For the $\text{CMOS}$ monostable multivibrator of given figure, $\mathrm{R}=50 \mathrm{~kW}, \mathrm{C}=0.01 \; \mu \mathrm{F}, \mathrm{V}_{\mathrm{DD}}=5 \mathrm{~V}$, and the $\text{CMOS NOR}$ ... $v_{\mathrm{R}}(t)$, for $t>0$. Find the time period of the output pulse.
For the $\text{CMOS}$ monostable multivibrator of given figure, $\mathrm{R}=50 \mathrm{~kW}, \mathrm{C}=0.01 \; \mu \mathrm{F}, \mathrm{V}_{\mathrm{DD}}=5 \mathrm{~V}$, a...
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2952
GATE ECE 1999 | Question 10
In the $\text{CMOS}$ inverter circuit shown in the figure is the input Vi makes a transition from $\mathrm{V}_{\mathrm{OL}}(=0 \mathrm{~V})$ to $\mathrm{V}_{\mathrm{OH}}(=5 \mathrm{~V})$ ... $=20 \mu \mathrm{A} / \mathrm{V}^{2}, \quad \lambda=0$. Neglect body effect.
In the $\text{CMOS}$ inverter circuit shown in the figure is the input Vi makes a transition from $\mathrm{V}_{\mathrm{OL}}(=0 \mathrm{~V})$ to $\mathrm{V}_{\mathrm{OH}}(...
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2955
GATE ECE 1998 | Question 2.3
In the figure is $A=1$ and $B=1$, the input $B$ is now replaced by a sequence $101010 \ldots$. , the outputs $x$ and $y$ will be fixed at $0$ and $1$, respectively $x=1010 \ldots \ldots$ while $y=0101 \ldots \ldots$ $x=1010 \ldots \ldots$ and $y=1010 \ldots \ldots$. fixed at $1$ and $0$, respectively
In the figure is $A=1$ and $B=1$, the input $B$ is now replaced by a sequence $101010 \ldots$. , the outputs $x$ and $y$ will befixed at $0$ and $1$, respectively$x=1010 ...
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2956
GATE ECE 1998 | Question 2.16
The $\text{ACF}$ of a rectangular pulse of duration $\mathrm{T}$ is a rectangular pulse of duration $\mathrm{T}$ a rectangular pulse of duration $\mathrm{2T}$ a triangular pulse of duration $\text{T}$ a triangular pulse of duration $2 \mathrm{T}$
The $\text{ACF}$ of a rectangular pulse of duration $\mathrm{T}$ isa rectangular pulse of duration $\mathrm{T}$a rectangular pulse of duration $\mathrm{2T}$a triangular p...
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2957
GATE ECE 1998 | Question 2.18
In a $\text{PCM}$ system with uniform quantisation, increasing the number of bits from $8$ to $9$ will reduce the quantisation noise power by a factor of $9$ $8$ $4$ $2$
In a $\text{PCM}$ system with uniform quantisation, increasing the number of bits from $8$ to $9$ will reduce the quantisation noise power by a factor of$9$$8$$4$$2$
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2958
GATE ECE 1998 | Question 2.24
Compression in $\text{PCM}$ refers to relative compression of higher signal amplitudes lower signal amplitudes lower signal frequencies higher signal frequencies
Compression in $\text{PCM}$ refers to relative compression ofhigher signal amplitudeslower signal amplitudeslower signal frequencieshigher signal frequencies
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2959
GATE ECE 1998 | Question 2.27
The probability density function of the envelope of narrow band Gaussian noise is Poisson Gaussian Rayleigh Rician
The probability density function of the envelope of narrow band Gaussian noise isPoissonGaussianRayleighRician
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2960
GATE ECE 1998 | Question 2.29
The Maxwell equation $\mathrm{V} \times \mathrm{H}=\mathrm{J}+\frac{\partial \overline{D}}{\partial t}$ is based on Ampere's law Gauss' law Faraday's law Coulomb's law
The Maxwell equation $\mathrm{V} \times \mathrm{H}=\mathrm{J}+\frac{\partial \overline{D}}{\partial t}$ is based onAmpere's lawGauss' lawFaraday's lawCoulomb's law
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