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Recent questions tagged gate2014-ee-2
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1
GATE Electrical 2014 Set 2 | Question: 55
The SCR in the circuit shown has a latching current of $40 \: mA$. $A$ gate pulse of $50 \: \mu s$ is applied to the $SCR$. The maximum value of $R$ in $ \Omega$ to ensure successful firing of the $SCR$ is ________.
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Electrical and Electronic Measurements
Feb 12, 2017
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makhdoom ghaya
9.3k
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gate2014-ee-2
latching-circuit
firing-angle
numerical-answers
0
votes
0
answers
2
GATE Electrical 2014 Set 2 | Question: 54
A single-phase $SCR$ based $ac$ regulator is feeding power to a load consisting of $5 \Omega$ resistance and $16 \: mH$ inductance. The input supply is $230 \: V$, $50 \: Hz$ ac. The maximum firing angle at which the voltage across the device becomes zero all throughout and ... $30^\circ$ and $23 \: A$ $45^\circ$ and $23 \: A$ $45^\circ$ and $32 \: A$
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Electrical and Electronic Measurements
Feb 12, 2017
by
makhdoom ghaya
9.3k
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gate2014-ee-2
thyristor
firing-angle
0
votes
0
answers
3
GATE Electrical 2014 Set 2 | Question: 53
A fully controlled converter bridge feeds a highly inductive load with ripple free load current. The input supply $(V_s)$ to the bridge is a sinusoidal source. Triggering angle of the bridge converter is $\alpha =30^ \circ$. The input power factor of the bridge is __________.
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Electrical and Electronic Measurements
Feb 12, 2017
by
makhdoom ghaya
9.3k
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gate2014-ee-2
power-factor
converters
numerical-answers
0
votes
0
answers
4
GATE Electrical 2014 Set 2 | Question: 52
In an $8085$ ... $A$ contains $60H$ $30H$ $06H$ $03H$
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Electrical and Electronic Measurements
Feb 12, 2017
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makhdoom ghaya
9.3k
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gate2014-ee-2
registers
programming
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votes
0
answers
5
GATE Electrical 2014 Set 2 | Question: 51
A $JK$ flip flop can be implemented by $T$ flip-flops. Identify the correct implementation.
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Analog and Digital Electronics
Feb 12, 2017
by
makhdoom ghaya
9.3k
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gate2014-ee-2
t-flip-flop
latches
0
votes
0
answers
6
GATE Electrical 2014 Set 2 | Question: 47
Suppose that resistors $R_1$ and $R_2$ are connected in parallel to give an equivalent resistor $R$. If resistors $R_1$ and $R_2$ have tolerance of $1 \%$ each, the equivalent resistor $R$ for resistors $R_1=300\: \Omega$ and $R_2 = 200 \: \Omega$ will have tolerance of $0.5 \%$ $1 \%$ $1.2 \%$ $2 \%$
makhdoom ghaya
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Power Systems
Feb 12, 2017
by
makhdoom ghaya
9.3k
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gate2014-ee-2
power-systems
parallel-combination
tolerance
0
votes
0
answers
7
GATE Electrical 2014 Set 2 | Question: 50
The $SOP$ (sum of products) form of a Boolean function is $\sum (0,1,3,7,11)$, where inputs are $A,B,C,D$ ($A$ is $MSB$, and $D$ is $LSB$ ... $(\overline{B}+C)(A+\overline{B})(\overline{A}+\overline{B})(\overline{C}+D)$
makhdoom ghaya
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Analog and Digital Electronics
Feb 12, 2017
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makhdoom ghaya
9.3k
points
gate2014-ee-2
boolean-function
least-significant-bit
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votes
0
answers
8
GATE Electrical 2014 Set 2 | Question: 49
An oscillator circuit using ideal op-amp and diodes is shown in the figure. The time duration for $+ve$ part of the cycle is $\Delta t_1$ and for $–ve$ part is $\Delta t_2$ . The value of $e^{\frac{\Delta t_1-\Delta t_2}{RC}}$ will be _____________.
makhdoom ghaya
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Analog and Digital Electronics
Feb 12, 2017
by
makhdoom ghaya
9.3k
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gate2014-ee-2
operational-amplifier
feed-back-resistor
numerical-answers
0
votes
0
answers
9
GATE Electrical 2014 Set 2 | Question: 46
The second order dynamic system $\dfrac{dX}{dt}=PX+Qu$ $y=RX$ has the matrices $P$, $Q$ and $R$ as follows: $P=\begin{bmatrix} -1 & 1\\ 0& -3 \end{bmatrix}$ ... the following controllability and observability properties: Controllable and observable Not controllable but observable Controllable but not observable Not controllable and not observable
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Control Systems
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-2
dynamic-system
controlability
0
votes
0
answers
10
GATE Electrical 2014 Set 2 | Question: 45
For the transfer function $G(s)=\dfrac{5(s+2)}{s(s+0.25)(s^2+4s+25)}$ The values of the constant gain term and the highest corner frequency of the Bode plot respectively are $3.2$ , $5.0$ $16.0$ , $4.0$ $3.2$ , $4.0$ $16.0$ , $5.0$
makhdoom ghaya
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Control Systems
Feb 12, 2017
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makhdoom ghaya
9.3k
points
gate2014-ee-2
transfer-function
gain
bode-plot
0
votes
0
answers
11
GATE Electrical 2014 Set 2 | Question: 44
A system with the open loop transfer function $G(s)=\dfrac{K}{s(s+2)(s^2+2s+2)}$ is connected in a negative feedback configuration with a feedback gain of unity. For the closed loop system to be marginally stable, the value of $K$ is ______
makhdoom ghaya
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in
Control Systems
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-2
negative-feedback
marginally-stable
numerical-answers
0
votes
0
answers
12
GATE Electrical 2014 Set 2 | Question: 48
Two ammeters $X$ and $Y$ have resistances of $1.2$ $Ω$ and $1.5$ $Ω$ respectively and they give full-scale deflection with $150$ $mA$ and $250$ $mA$ respectively. The ranges have been extended by connecting shunts so as to give ... in a circuit in which the total current flowing is $15$ $A$. The current in amperes indicated in ammeter $X$ is __________.
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in
Electric Circuits
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-2
current-measurement
voltage-measurement
numerical-answers
0
votes
0
answers
13
GATE Electrical 2014 Set 2 | Question: 43
Three phase $100$ $MVA$ ,$25$ $kV$ generator has solidly grounded neutral. The positive, negative, and the zero sequence reactances of the generator are $0.2$ $pu$, $0.2$ $pu$, and $0.05$ $pu$, respectively, at ... phase to ground fault occurs at the terminal of the unloaded generator, the fault current in amperes immediately after the fault is _________.
makhdoom ghaya
asked
in
Power Systems
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-2
solidly-grounded
zero-sequence-network
ground-fault
numerical-answers
0
votes
0
answers
14
GATE Electrical 2014 Set 2 | Question: 41
There are two generators in a power system. No-load frequencies of the generators are $51.5$ $Hz$ and $51$ $Hz$, respectively, and both are having droop constant of $1$ $Hz$/$MW$. Total load in the system is ... are operating under their respective droop characteristics, the frequency of the power system in $Hz$ in the steady state is ___________.
makhdoom ghaya
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in
Power Systems
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-2
power-system-analysis
power-production
numerical-answers
0
votes
0
answers
15
GATE Electrical 2014 Set 2 | Question: 40
A synchronous generator is connected to an infinite bus with excitation voltage $E_f$ = $1.3$ $pu$. The generator has a synchronous reactance of $1.1$ $pu$ and is delivering real power $(P)$ of $0.6$ $pu$ to the bus. ... Neglect stator resistance. The reactive power $(Q)$ in $pu$ supplied by the generator to the bus under this condition is _________.
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in
Power Systems
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-2
infinite-bus
real-power
numerical-answers
0
votes
0
answers
16
GATE Electrical 2014 Set 2 | Question: 42
The horizontally placed conductors of a single phase line operating at $50$ $Hz$ are having outside diameter of $1.6$ $cm$, and the spacing between centers of the conductors is $6$ $m$. The permittivity of free space is $8.854\times 10^{-12}F/m$. The capacitance to ground ... $8.4\times 10^{-9}F$ $4.2\times 10^{-12}F$ $8.4\times 10^{-12}F$
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Electromagnetic Fields
Feb 12, 2017
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makhdoom ghaya
9.3k
points
gate2014-ee-2
relative-permitivity
permeability
0
votes
0
answers
17
GATE Electrical 2014 Set 2 | Question: 32
The magnitude of magnetic flux density ($\vec{B}$ ) at a point having normal distance $d$ meters from an infinitely extended wire carrying current of $I$ $A$ is $\dfrac{\mu i}{2\pi d}$ (in $SI$ units) (in SI units). An infinitely extended wire is laid along the $x$-axis and is ... $\dfrac{3}{2\pi }\hat{k} \: A/m \\$ $0 \: A/m$
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Electromagnetic Fields
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-2
flux-density
field-intensity
0
votes
0
answers
18
GATE Electrical 2014 Set 2 | Question: 38
A $20$-pole alternator is having $180$ identical stator slots with $6$ conductors in each slot. All the coils of a phase are in series. If the coils are connected to realize single-phase winding, the generated voltage is $V_1$. If the coils are reconnected to realize three-phase ... $V_1/V_2$ is $\dfrac{1}{\sqrt{3}} \\$ $\dfrac{1}{2} \\$ $\sqrt{3} \\$ $2$
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Electrical Machines
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-2
full-pitched-winding
generator
0
votes
0
answers
19
GATE Electrical 2014 Set 2 | Question: 37
A three-phase slip-ring induction motor, provided with a commutator winding, is shown in the figure. The motor rotates in clockwise direction when the rotor windings are closed. If the rotor winding is open circuited and the system is made to run at rotational speed fr with the help ... $f$ $f-f_r$ and $f$ $f-f_r$ and $f+f_r$ $f+f_r$ and $f-f_r$
makhdoom ghaya
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in
Electrical Machines
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-2
prime-mover
slip-rings
commutator
0
votes
0
answers
20
GATE Electrical 2014 Set 2 | Question: 34
An input signal $x(t)=2+5 \sin(100\pi t)$ is sampled with a sampling frequency of $400$ $Hz$ ... where, $N$ represents the number of samples per cycle. The output $y(n)$ of the system under steady state is $0$ $1$ $2$ $5$
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Signals and Systems
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-2
transfer-function
sampling-per-cycle
0
votes
0
answers
21
GATE Electrical 2014 Set 2 | Question: 30
The voltage across the capacitor, as shown in the figure, is expressed as $V_c(t)=A_1\sin(\omega _1t-\theta _1)+A_2 \sin(\omega _2t-\theta _2)$ The values of $A_1 $and $A_2$ respectively, are $2.0$ and $1.98$ $2.0$ and $4.20$ $2.5$ and $3.50$ $5.0$ and $6.40$
makhdoom ghaya
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in
Electric Circuits
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-2
sinusoidal-voltage-source
0
votes
0
answers
22
GATE Electrical 2014 Set 2 | Question: 36
A $250$ $V$ $dc$ shunt machine has armature circuit resistance of $0.6$ $Ω$ and field circuit resistance of $125$ $Ω$. The machine is connected to $250$ $V$ supply mains. The motor is operated as a generator and then as a motor separately ... in both the cases is $50$ $A$. The ratio of the speed as a generator to the speed as a motor is ____________.
makhdoom ghaya
asked
in
Electrical Machines
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-2
core-resistance
armature-winding
numerical-answers
0
votes
0
answers
23
GATE Electrical 2014 Set 2 | Question: 31
The total power dissipated in the circuit, shown in the figure, is $1$ $kW$. The voltmeter, across the load, reads $200$ $V$. The value of $X_L$ is ___________.
makhdoom ghaya
asked
in
Electric Circuits
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-2
power-loss
reactance
numerical-answers
0
votes
0
answers
24
GATE Electrical 2014 Set 2 | Question: 39
For a single phase, two winding transformer, the supply frequency and voltage are both increased by $10%$. The percentage changes in the hysteresis loss and eddy current loss, respectively, are $10$ and $21$ $-10$ and $21$ $21$ and $10$ $-21$ and $10$
makhdoom ghaya
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in
Electrical Machines
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-2
hysterisis-loss
eddy-current-loss
0
votes
0
answers
25
GATE Electrical 2014 Set 2 | Question: 35
A $10$ $kHz$ even-symmetric square wave is passed through a bandpass filter with centre frequency at $30$ $kHz$ and $3$ $dB$ passband of $6$ $kHz$. The filter output is a highly attenuated square wave at $10$ $kHz$. nearly zero. a nearly perfect cosine wave at $30$ $kHz$ a nearly perfect sine wave at $30$ $kHz$.
makhdoom ghaya
asked
in
Analog and Digital Electronics
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-2
band-limiting-circuit
filters
0
votes
0
answers
26
GATE Electrical 2014 Set 2 | Question: 33
A discrete system is represented by the difference equation $\begin{bmatrix} X_1(k+1)\\ X_2(k+2) \end{bmatrix}=\begin{bmatrix} a & a-1\\ a+1 & a \end{bmatrix}\begin{bmatrix} X_1(k)\\X_2(k) \end{bmatrix}$ It has initial conditions $X_1(0)$ = $1$ ... $a$ = $1$, are $1\pm j0$ $-1\pm j0$ $\pm 1+j0$ $0\pm j1$
makhdoom ghaya
asked
in
Control Systems
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-2
bode-plot
stability-study
0
votes
0
answers
27
GATE Electrical 2014 Set 2 | Question: 29
Assuming the diodes to be ideal in the figure, for the output to be clipped, the input voltage $v_i$ must be outside the range $-1$ $V$ to $-2$ $V$ $-2$ $V$ to $-4$ $V$ $+1$ $V$ to $-2$ $V$ $+2$ $V$ to $-4$ $V$
makhdoom ghaya
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in
Analog and Digital Electronics
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-2
clipper-circuits
diodes
0
votes
0
answers
28
GATE Electrical 2014 Set 2 | Question: 28
The minimum value of the function $f(x)=x^3-3x^2-24x+100$ in the interval $[-3,3]$ is $20$ $28$ $16$ $32$
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Calculus
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-2
calculus
maxima-minima
0
votes
0
answers
29
GATE Electrical 2014 Set 2 | Question: 27
Let $X$ be a random variable with probability density function $f(x)=\begin{cases} 0.2,& \text{for } \mid x \mid \leq 1\\ 0.1,& \text{for }1< \mid x \mid \leq 4\\ 0 & \text{otherwise } \end{cases} \\$ The probability $P(0.5 < X < 5)$ is ______.
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in
Probability & Statistics
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-2
probability-and-statistics
probability
random-variable
probability-density-function
numerical-answers
0
votes
0
answers
30
GATE Electrical 2014 Set 2 | Question: 26
To evaluate the double integral $\displaystyle \int_{0}^{8} \bigg (\int_{(y/2)}^{y/2+1} \bigg (\dfrac{2x-y}{2} \bigg)dx \bigg)dy$ , we make the substitution $u=\bigg (\dfrac{2x-y}{2} \bigg)$ and $v=\dfrac{y}{2}$ ... $\displaystyle \int_{0}^{4} \bigg (\int_{0}^{2}u \: du \bigg ) dv$
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in
Calculus
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-2
calculus
definite-integral
double-integral
0
votes
0
answers
31
GATE Electrical 2014 Set 2 | Question: 23
The sinusoidal ac source in the figure has an rms value of $\dfrac{20}{\sqrt{2}}V$ . Considering all possible values of $R_L$, the minimum value of $R_S$ in $\Omega$ to avoid burnout of the Zener diode is _________.
makhdoom ghaya
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in
Analog and Digital Electronics
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-2
analog-and-digital-electronics
zener-diode
reverse-saturation-current
numerical-answers
0
votes
0
answers
32
GATE Electrical 2014 Set 2 | Question: 18
The state transition matrix for the system $\begin{bmatrix} \dot{x_1}\\ \dot{x_2} \end{bmatrix}=\begin{bmatrix} 1 & 0\\ 1 & 1 \end{bmatrix}\begin{bmatrix} x_1\\ x_2 \end{bmatrix}+\begin{bmatrix} 1\\ 1 \end{bmatrix}u$ ... $\begin{bmatrix} e^t &te^t \\ 0&e^t \end{bmatrix}$
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in
Linear Algebra
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-2
linear-algebra
matrices
transition-matrix
0
votes
0
answers
33
GATE Electrical 2014 Set 2 | Question: 19
The saw-tooth voltage waveform shown in the figure is fed to a moving iron voltmeter. Its reading would be close to _____________
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in
Electric Circuits
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-2
waveforms
voltmeter
numerical-answers
0
votes
0
answers
34
GATE Electrical 2014 Set 2 | Question: 17
The closed loop transfer function of a system is $T(s)=\dfrac{4}{s^2+0.4S+4}$ The steady state error due to unit step input is __________.
makhdoom ghaya
asked
in
Control Systems
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-2
unit-step-function
closed-loop-system
numerical-answers
0
votes
0
answers
35
GATE Electrical 2014 Set 2 | Question: 24
A step-up chopper is used to feed a load at $400$ $V$ $dc$ from a $250$ $V$ $dc$ source. The inductor current is continuous. If the ‘off’ time of the switch is $20$ $μs$, the switching frequency of the chopper in $kHz$ is ____________.
makhdoom ghaya
asked
in
Analog and Digital Electronics
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-2
boost-converter
numerical-answers
0
votes
0
answers
36
GATE Electrical 2014 Set 2 | Question: 22
The transistor in the given circuit should always be in active region. Take $V_{CE(sat)}$ = $0.2$ $V$ , $V_{BE}$=$0.7$ $V$. The maximum value of $R_c$ in $Ω$ which can be used, is ______________.
makhdoom ghaya
asked
in
Analog and Digital Electronics
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-2
gain-factor
bjt-transistor
numerical-answers
0
votes
0
answers
37
GATE Electrical 2014 Set 2 | Question: 20
While measuring power of a three-phase balanced load by the two-wattmeter method, the readings are $100$ $W$ and $250$ $W$. The power factor of the load is ______.
makhdoom ghaya
asked
in
Power Systems
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-2
balanced-loads
power-factor
numerical-answers
0
votes
0
answers
38
GATE Electrical 2014 Set 2 | Question: 25
In a constant $V/f$ control of induction motor, the ratio $V/f$ is maintained constant from $0$ to base frequency, where $V$ is the voltage applied to the motor at fundamental frequency $f$. Which of the following statements ... its rated value. At low frequency, the motor saturates. At low frequency, the stator flux remains unchanged at its rated value.
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in
Electrical Machines
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-2
frequency-drives
frequency-harmonics
0
votes
0
answers
39
GATE Electrical 2014 Set 2 | Question: 21
Which of the following is an invalid state in an $8$-$4$-$2$-$1$ Binary Coded Decimal counter $1$ $0$ $0$ $0$ $1$ $0$ $0$ $1$ $0$ $0$ $1$ $1$ $1$ $1$ $0$ $0$
makhdoom ghaya
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in
Analog and Digital Electronics
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-2
binary-code
counter
0
votes
0
answers
40
GATE Electrical 2014 Set 2 | Question: 11
Assuming an ideal transformer, the Thevenin’s equivalent voltage and impedance as seen from the terminals $x$ and $y$ for the circuit in figure are $2 \sin(wt) , 4 \Omega $ $1 \sin(wt), 1\Omega$ $1 \sin(wt), 2\Omega$ $1 \sin(wt), 0.5\Omega$
makhdoom ghaya
asked
in
Electric Circuits
Feb 12, 2017
by
makhdoom ghaya
9.3k
points
gate2014-ee-2
thevinin-circuit
ideal-transformer
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