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Recent questions tagged gate2014-ee-3
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1
GATE Electrical 2014 Set 3 | Question: 54
A diode circuit feeds an ideal inductor as shown in the figure. Given $v_s=100 \sin(w_t) \: V$ where $\omega = 100\pi \text{ rad/s}$, and $L=31.83 \: mH$. The initial value of inductor current is zero. Switch $S$ is closed at $t=2.5 \: ms$. The peak value of inductor current $i_L$ (in $A$) in the first cycle is ________.
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Electric Circuits
Feb 12, 2017
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makhdoom ghaya
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gate2014-ee-3
time-response
peak-value
numerical-answers
0
votes
0
answers
2
GATE Electrical 2014 Set 3 | Question: 55
A single-phase voltage source inverter shown in figure is feeding power to a load. The triggering pulses of the devices are also shown in the figure. If the load current is sinusoidal and is zero at $0,\pi , 2\pi$ …, the node voltage $V_{AO}$ has the waveform
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Analog and Digital Electronics
Feb 12, 2017
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makhdoom ghaya
9.3k
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gate2014-ee-3
pulses
invertor
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votes
0
answers
3
GATE Electrical 2014 Set 3 | Question: 53
A three-phase fully controlled bridge converter is fed through star-delta transformer as shown in the figure. The converter is operated at a firing angle of $300$. Assuming the load current $(I_0)$ to be virtually constant at $1 \: p.u$. and transformer to be an ideal one, the input phase current waveform is
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Power Systems
Feb 12, 2017
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makhdoom ghaya
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gate2014-ee-3
star-connection
delta-connection
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0
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4
GATE Electrical 2014 Set 3 | Question: 50
The transfer characteristic of the Op-amp circuit shown in figure is
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Analog and Digital Electronics
Feb 12, 2017
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makhdoom ghaya
9.3k
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gate2014-ee-3
transfer-characteristics
operational-amplifier
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0
answers
5
GATE Electrical 2014 Set 3 | Question: 52
A hysteresis type $TTL$ inverter is used to realize an oscillator in the circuit shown in the figure. If the lower and upper trigger level voltages are $0.9$ $V$ and $1.7$ $V$, the period (in $ms$), for which output is $LOW$, is __________.
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Analog and Digital Electronics
Feb 12, 2017
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makhdoom ghaya
9.3k
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gate2014-ee-3
trigger-level
oscillator
numerical-answers
0
votes
0
answers
6
GATE Electrical 2014 Set 3 | Question: 51
A $3$-$bit$ gray counter is used to control the output of the multiplexer as shown in the figure. The initial state of the counter is $0002$. The output is pulled $high$. The output of the circuit follows the sequence $I_0$, $1$, $1$, $I_1$, $I_3$, $1$, $1$, $I_2$ ... $1$, $I_1$, $I_2$, $1$, $I_3$,$1$ $I_0$, $I_1$, $I_2$, $I_3$, $I_0$, $I_1$, $I_2$, $I_3$
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Analog and Digital Electronics
Feb 12, 2017
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makhdoom ghaya
9.3k
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gate2014-ee-3
binary-code
counter
multiplexer
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votes
0
answers
7
GATE Electrical 2014 Set 3 | Question: 49
Two monoshot multivibrators, one positive edge triggered $(M_1)$ and another negative edge triggered $(M_2)$, are connected as shown in figure The monoshots $M_1$ and $M_2$ when triggered produce pulses of width $T_1$ and $T_2$ respectively, where $T_1>T_2$. The steady state output voltage $v_0$ of the circuit is
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Analog and Digital Electronics
Feb 12, 2017
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makhdoom ghaya
9.3k
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gate2014-ee-3
multi-vibrator
edge-triggered
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0
answers
8
GATE Electrical 2014 Set 3 | Question: 47
A periodic waveform observed across a load is represented by $V(t)=\begin{cases} 1+\sin\omega t & 0\leq \omega t< 6\pi \\ -1+ \sin\omega t & 6\pi \leq \omega t< 12\pi \end{cases}$ The measured value, using moving iron voltmeter connected across the load, is $\sqrt{\dfrac{3}{2}} \\$ $\sqrt{\dfrac{2}{3}} \\$ $\dfrac{3}{2} \\$ $\dfrac{2}{3}$
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Electric Circuits
Feb 12, 2017
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makhdoom ghaya
9.3k
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gate2014-ee-3
wave-forms
periodic-functions
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votes
0
answers
9
GATE Electrical 2014 Set 3 | Question: 44
The block diagram of a system is shown in the figure If the desired transfer function of the system is $\dfrac{C(s)}{R(s)}=\dfrac{s}{s^2+s+1}$ then $G(s)$ is $1$ $s$ $1/s$ $\dfrac{-s}{s^3+s^2-s-2}$
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Control Systems
Feb 12, 2017
by
makhdoom ghaya
9.3k
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gate2014-ee-3
feedback
closed-loop-system
0
votes
0
answers
10
GATE Electrical 2014 Set 3 | Question: 43
The figure shows the single line diagram of a single machine infinite bus system. The inertia constant of the synchronous generator $H = 5 \: MW-s/MVA$. Frequency is $50 \: Hz$. Mechanical power is $1 \: pu$. The system is operating at the stable ... $3.762 \text{ radian/s}$ respectively, then $P_{\text{max}}$ (in $pu$) is _______.
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Power Systems
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-3
line-diagrams
fault-analysis
numerical-answers
0
votes
0
answers
11
GATE Electrical 2014 Set 3 | Question: 42
The complex power consumed by a constant-voltage load is given by $(P_1+jQ_1)$, where, $1 \: kW \leq P_1 \leq 1.5 \text{ kW}$ and $0.5 \: \text{kVAR} \leq Q_1 \leq 1 \text{ kVAR}$. A compensating shunt ... is the net reactive power consumed by the capacitor-load combination. The reactive power (in $\text{kVAR}$) supplied by the capacitor is _________.
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Power Systems
Feb 12, 2017
by
makhdoom ghaya
9.3k
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gate2014-ee-3
capacitor-load-combination
numerical-answers
0
votes
0
answers
12
GATE Electrical 2014 Set 3 | Question: 40
The parameters measured for a $220V/110V$, $50 \: Hz$, single-phase transformer are: Self inductance of primary winding $= 45 \: mH$ Self inductance of secondary winding $= 30 \: mH$ Mutual inductance between primary and secondary windings $= 20 \: mH$ Using the above parameters, ... $10 \: mH$ and $20 \: mH$ $45 \: mH$, $30 \: mH$ and $20 \: mH$
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in
Electrical Machines
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-3
step-down-transformer
core-losses
0
votes
0
answers
13
GATE Electrical 2014 Set 3 | Question: 48
In the bridge circuit shown, the capacitors are loss free. At balance, the value of capacitance $C_1$ in microfarad is _________.
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in
Analog and Digital Electronics
Feb 12, 2017
by
makhdoom ghaya
9.3k
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gate2014-ee-3
bridge-circuit
source
numerical-answers
0
votes
0
answers
14
GATE Electrical 2014 Set 3 | Question: 41
For a $400$ $km$ long transmission line, the series impedance is ($0.0$ + $j0.5$) $Ω/km$ and the shunt admittance is ($0.0$ + $j5.0$) $μmho$/$km$. The magnitude of the series impedance (in $\Omega$) of the equivalent $\pi$ circuit of the transmission line is ________.
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in
Power Systems
Feb 12, 2017
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makhdoom ghaya
9.3k
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gate2014-ee-3
long
transmission
line
series
impedance
numerical-answers
0
votes
0
answers
15
GATE Electrical 2014 Set 3 | Question: 39
The load shown in the figure absorbs $4$ $kW$ at a power factor of $0.89$ lagging. Assuming the transformer to be ideal, the value of the reactance $X$ to improve the input power factor to unity is ___________.
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in
Electrical Machines
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-3
loss-less-transformer
transformation-ratio
numerical-answers
0
votes
0
answers
16
GATE Electrical 2014 Set 3 | Question: 46
The magnitude Bode plot of a network is shown in the figure The maximum phase angle $\phi _m$ and the corresponding gain $G_m$ respectively, are $-30^{\circ}$ and $1.73$ $dB$ $-30^{\circ}$ and $477$ $dB$ $+30^{\circ}$ and $4.77$ $dB$ $+30^{\circ}$ and $1.73$ $dB$
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Control Systems
Feb 12, 2017
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makhdoom ghaya
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gate2014-ee-3
bode-plot
stability
0
votes
0
answers
17
GATE Electrical 2014 Set 3 | Question: 45
Consider the system described by following state space equations $\begin{vmatrix} \dot{x_1}\\ \dot{x_2} \end{vmatrix}=\begin{vmatrix} 0 &1 \\ -1 & -1 \end{vmatrix}\begin{vmatrix} x_1\\x_2 \end{vmatrix}+\begin{vmatrix} 0\\1 \end{vmatrix}u$ ... $u$ is unit step input, then the steady state error of the system is $0$ $1/2$ $2/3$ $1$
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Control Systems
Feb 12, 2017
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makhdoom ghaya
9.3k
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gate2014-ee-3
state-space-functions
steady-state-error
0
votes
0
answers
18
GATE Electrical 2014 Set 3 | Question: 28
The function $f(x)=e^x-1$ is to be solved using Newton-Raphson method. If the initial value of $x_0$ is taken as $1.0$, then the absolute error observed at $2^{nd}$ iteration is _______.
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Numerical Methods
Feb 12, 2017
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makhdoom ghaya
9.3k
points
gate2014-ee-3
numerical-methods
newton-raphson-method
0
votes
0
answers
19
GATE Electrical 2014 Set 3 | Question: 31
A perfectly conducting metal plate is placed in $x-y$ plane in a right handed coordinate system. A charge of $+32\pi \epsilon _0\sqrt{2}$ columbs is placed at coordinate $(0, 0, 2)$. $\epsilon _0$ is the permittivity of free space. Assume $\hat{i}$,$\hat{j}$ ... $2\sqrt{2}\hat{k}$ $-2\hat{k}$ $2\hat{k}$ $-2\sqrt{2}\hat{k}$
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Electromagnetic Fields
Feb 12, 2017
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makhdoom ghaya
9.3k
points
gate2014-ee-3
conduction
permitivity
coordinate-system
0
votes
0
answers
20
GATE Electrical 2014 Set 3 | Question: 35
A differentiable non constant even function $x(t)$ has a derivative $y(t)$, and their respective Fourier Transforms are $X(\omega)$ and $Y(\omega)$. Which of the following statements is TRUE? $X(\omega)$ and $Y(\omega)$ ... imaginary. $X(\omega)$ and $Y(\omega)$ are both imaginary. $X(\omega)$ is imaginary and $Y(\omega)$ is real.
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Signals and Systems
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-3
even-functions
fourier-transform
0
votes
0
answers
21
GATE Electrical 2014 Set 3 | Question: 32
A series $RLC$ circuit is observed at two frequencies. At $ω_1=1 \text{ krad/s}$, we note that source voltage $V_1=100\angle 0^{\circ} \: V$ results in a current $I_1=0.03\angle 31^{\circ}$ $A$. At $w_2=2 \text{ krad/s}$ ... $R=50\Omega$ ; $L=50 mH$ ,$C=5 \mu F$ $R=50\Omega$ ; $L=5 mH$ ,$C=50 \mu F$
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in
Signals and Systems
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-3
rc-filter
rl-filter
0
votes
0
answers
22
GATE Electrical 2014 Set 3 | Question: 27
The mean thickness and variance of silicon steel laminations are $0.2 mm$ and $0.02$ respectively. The varnish insulation is applied on both the sides of the laminations. The mean thickness of one side insulation and its variance are$0.1 \: mm$ and $0.01$ respectively. If the ... $0.22$ $30 \: mm$ and $2.44$ $40 \: mm$ and $2.44$ $40\: mm$ and $0.24$
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Electrical Machines
Feb 12, 2017
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makhdoom ghaya
9.3k
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gate2014-ee-3
insulation
core
0
votes
0
answers
23
GATE Electrical 2014 Set 3 | Question: 33
A continuous-time $LTI$ system with system function $H(w)$ has the following pole-zero plot. For this system, which of the alternatives is $TRUE$? $\mid H(0)\mid > \mid H(w)\mid ;\mid w\mid > 0$ $\mid H(w) \mid$ has multiple maxima, at $w_1$ ... $\mid H(w)\mid =$ constant; $-\infty < w< \infty$
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in
Signals and Systems
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-3
pole-zero-plot
linear-time-invariant-system
0
votes
0
answers
24
GATE Electrical 2014 Set 3 | Question: 29
The Norton’s equivalent source in amperes as seen into the terminals $X$ and $Y$ is _______.
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Electric Circuits
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-3
thevenins
-theorem
nortons-theorem
numerical-answers
0
votes
0
answers
25
GATE Electrical 2014 Set 3 | Question: 38
A separately excited $300$ $V$ $DC$ shunt motor under no load runs at $900$ $rpm$ drawing an armature current of $2$ $A$. The armature resistance is $0.5$ $Ω$ and leakage inductance is $0.01$ $H$. When loaded, the armature current is $15$ $A$. Then the speed in $rpm$ is _____
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in
Electrical Machines
Feb 12, 2017
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makhdoom ghaya
9.3k
points
gate2014-ee-3
series-connection
synchronous-speed
numerical-answers
0
votes
0
answers
26
GATE Electrical 2014 Set 3 | Question: 37
A non-salient pole synchronous generator having synchronous reactance of $0.8$ $pu$ is supplying $1$ $pu$ power to a unity power factor load at a terminal voltage of $1.1$ $pu$. Neglecting the armature resistance, the angle of the voltage behind the synchronous reactance with respect to the angle of the terminal voltage in degrees is ________.
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Electrical Machines
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-3
pitch-factor
distribution-factor
numerical-answers
0
votes
1
answer
27
GATE Electrical 2014 Set 3 | Question: 30
The power delivered by the current source, in the figure, is ________.
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Electric Circuits
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-3
current-source
negative-power
numerical-answers
0
votes
0
answers
28
GATE Electrical 2014 Set 3 | Question: 34
A sinusoid $x(t)$ of unknown frequency is sampled by an impulse train of period $20$ $ms$. The resulting sample train is next applied to an ideal lowpass filter with a cutoff at $25$ $Hz$. The filter output is seen to be a sinusoid of frequency $20$ $Hz$. This means that $x(t)$ has a frequency of $10$ $Hz$ $60$ $Hz$ $30$ $Hz$ $90$ $Hz$
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Signals and Systems
Feb 12, 2017
by
makhdoom ghaya
9.3k
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gate2014-ee-3
impulse-train
low-pass-filter
0
votes
0
answers
29
GATE Electrical 2014 Set 3 | Question: 36
An open circuit test is performed on $50$ $Hz$ transformer, using variable frequency source and keeping $V/f$ ratio constant, to separate its eddy current and hysteresis losses. The variation of core loss/frequency as function of frequency is shown in the figure The hysteresis and eddy ... $62.5$ $W$ $312.5$ $W$ and $62.5$ $W$ $312.5$ $W$ and $250$ $W$
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Electrical Machines
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-3
core-losses
open-circuit-test
2
votes
1
answer
30
GATE Electrical 2014 Set 3 | Question: 21
A state diagram of a logic gate which exhibits a delay in the output is shown in the figure, where $X$ is the don’t care condition, and $Q$ is the output representing the state. The logic gate represented by the state diagram is $XOR$ $OR$ $AND$ $NAND$
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in
Analog and Digital Electronics
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-3
analog-and-digital-electronics
combinational-circuits
logic-gates
0
votes
0
answers
31
GATE Electrical 2014 Set 3 | Question: 26
Integration of the complex function $f(z)=\dfrac{z^2}{z^2-1}$ , in the counterclockwise direction, around $\mid z-1 \mid = 1$, is $-\pi i$ $0$ $\pi i$ $2 \pi i$
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Complex Variables
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-3
complex-variables
complex-functions
cauchys-integral-theorem
0
votes
0
answers
32
GATE Electrical 2014 Set 3 | Question: 19
An $LPF$ wattmeter of power factor $0.2$ is having three voltage settings $300 V$, $150 V$ and $75 V$, and two current settings $5 A$ and $10 A$. The full scale reading is $150$. If the wattmeter is used with $150 V$ voltage setting and $10 A$ current setting, the multiplying factor of the wattmeter is _________.
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in
Power Systems
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-3
power-systems
power-measurement
current-rating
numerical-answers
0
votes
0
answers
33
GATE Electrical 2014 Set 3 | Question: 22
An operational-amplifier circuit is shown in the figure. The output of the circuit for a given input $v_i$ is $- \bigg (\dfrac{R_2}{R_1} \bigg)v_i \\$ $- \bigg (1+\dfrac{R_2}{R_1} \bigg )v_i \\$ $\bigg (1+\dfrac{R_2}{R_1} \bigg)v_i \\$ +$V_{\text{sat}} \text{ or } -V_{ \text{sat}}$
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in
Analog and Digital Electronics
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-3
operational-amplifier
feed-back-resistor
0
votes
0
answers
34
GATE Electrical 2014 Set 3 | Question: 17
The signal flow graph of a system is shown below. $U(s)$ is the input and $C(s)$ is the output. Assuming, $h_1=b_1$ and $h_0=b_0-b_1a_1$ , the input-output transfer function, $G(s)=\dfrac{C(s)}{U(s)}$ ... $G(s)=\dfrac{b_1s+b_0}{s^2+a_1s+a_0} \\$ $G(s)=\dfrac{a_0s+a1}{s^2+b_0s+b_1}$
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Control Systems
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-3
stability
bode-plot
0
votes
0
answers
35
GATE Electrical 2014 Set 3 | Question: 20
The two signals $S1$ and $S2$, shown in figure, are applied to $Y$ and $X$ deflection plates of an oscilloscope. The waveform displayed on the screen is
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Signals and Systems
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-3
oscilloscope
even-functions
0
votes
0
answers
36
GATE Electrical 2014 Set 3 | Question: 16
A $183$-bus power system has $150$ $PQ$ buses and $32$ $PV$ buses. In the general case, to obtain the load flow solution using Newton-Raphson method in polar coordinates, the minimum number of simultaneous equations to be solved is ___________.
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in
Power Systems
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-3
slack-bus
line-losses
numerical-answers
0
votes
0
answers
37
GATE Electrical 2014 Set 3 | Question: 24
A non-ideal voltage source $V_s$ has an internal impedance of $Z_s$. If a purely resistive load is to be chosen that maximizes the power transferred to the load, its value must be $0$ real part of $Z_s$ magnitude of $Z_s$ magnitude of $Z_s$
makhdoom ghaya
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Power Systems
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-3
non-ideal-voltage-source
resistive-load
0
votes
0
answers
38
GATE Electrical 2014 Set 3 | Question: 18
A single-input single-output feedback system has forward transfer function $G(s)$ and feedback transfer function $H(s)$. It is given that $|G(s)H(s)|< 1$ . Which of the following is true about the stability of the system? The ... are in left half of the s-plane It is not possible to say whether or not the system is stable from the information given
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in
Control Systems
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-3
transfer-function
feed-back-system
0
votes
0
answers
39
GATE Electrical 2014 Set 3 | Question: 23
In $8085A$ microprocessor, the operation performed by the instruction $LHLD$ $2100_H$ is $(H)\leftarrow 21_H$ , $(L)\leftarrow 00_H$ $(H)\leftarrow M(2100_H)$ , $(L)\leftarrow M(2101_H)$ $(H)\leftarrow M(2101_H)$ , $(L)\leftarrow M(2100_H)$ $(L)\leftarrow 00_H$ , $(H)\leftarrow 21_H$
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Analog and Digital Electronics
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-3
binary-code
processing
0
votes
0
answers
40
GATE Electrical 2014 Set 3 | Question: 25
The torque-speed characteristics of motor $(TM)$ and load $(TL)$ for two cases are shown in the figures $(a)$ and $(b)$. The load torque is equal to motor torque at points $P$, $Q$, $R$ and $S$ The stable operating points are $P$ and $R$ $P$ and $S$ $Q$ and $R$ $Q$ and $S$
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Electrical Machines
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-3
tarque
speed
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