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Recent questions tagged gate2014ee2
0
votes
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answers
1
GATE2014255
The SCR in the circuit shown has a latching current of $40$ $mA$. $A$ gate pulse of $50$ $μs$ is applied to the $SCR$. The maximum value of $R$ in $Ω$ to ensure successful firing of the $SCR$ is _________.
asked
Feb 12, 2017
in
Electrical and Electronic Measurements
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
latchingcircuit
firingangle
numericalanswers
0
votes
0
answers
2
GATE2014253
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 $\alpha =30^0$. The input power factor of the bridge is __________.
asked
Feb 12, 2017
in
Electrical and Electronic Measurements
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
powerfactor
converters
numericalanswers
0
votes
0
answers
3
GATE2014254
A singlephase $SCR$ based $ac$ regulator is feeding power to a load consisting of $5$ $Ω$ 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 the rms value of current through ... $30^0$ and $46$ $A$ $30^0$ and $23$ $A$ $45^0$ and $23$ $A$ $45^0$ and $32$ $A$
asked
Feb 12, 2017
in
Electrical and Electronic Measurements
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
thyristor
firingangle
0
votes
0
answers
4
GATE2014252
In an $8085$ microprocessor, the following program is executed Address location – Instruction 2000H XRA A 2001H MVI B,04H 2003H MVI A, 03H 2005H RAR 2006H DCR B 2007H JNZ 2005 200AH HLT At the end of program, register A contains $60H$ $30H$ $06H$ $03H$
asked
Feb 12, 2017
in
Electrical and Electronic Measurements
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
registers
programming
0
votes
0
answers
5
GATE2014251
A $JK$ flip flop can be implemented by $T$ flipflops. Identify the correct implementation.
asked
Feb 12, 2017
in
Analog and Digital Electronics
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
tflipflop
latches
0
votes
0
answers
6
GATE2014249
An oscillator circuit using ideal opamp 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 _____________.
asked
Feb 12, 2017
in
Analog and Digital Electronics
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
operationalamplifier
feedbackresistor
numericalanswers
0
votes
0
answers
7
GATE2014248
Two ammeters $X$ and $Y$ have resistances of $1.2$ $Ω$ and $1.5$ $Ω$ respectively and they give fullscale deflection with $150$ $mA$ and $250$ $mA$ respectively. The ranges have been extended by connecting shunts so as to give full scale deflection ... placed in a circuit in which the total current flowing is $15$ $A$. The current in amperes indicated in ammeter $X$ is __________.
asked
Feb 12, 2017
in
Electrical Circuits
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
currentmeasurement
voltagemeasurement
numericalanswers
0
votes
0
answers
8
GATE2014244
A system with the open loop transfer function $G(s)=\frac{K}{s(s+2)(s^2+2s+2)}$ 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 ______
asked
Feb 12, 2017
in
Control Systems
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
negativefeedback
marginallystable
numericalanswers
0
votes
0
answers
9
GATE2014243
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 the machine ... bolted single phase to ground fault occurs at the terminal of the unloaded generator, the fault current in amperes immediately after the fault is _________.
asked
Feb 12, 2017
in
Power Systems
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
solidlygrounded
zerosequencenetwork
groundfault
numericalanswers
0
votes
0
answers
10
GATE2014241
There are two generators in a power system. Noload 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 $2.5$ $MW$. Assuming that the generators are operating under their respective droop characteristics, the frequency of the power system in $Hz$ in the steady state is ___________.
asked
Feb 12, 2017
in
Power Systems
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
powersystemanalysis
powerproduction
numericalanswers
0
votes
0
answers
11
GATE2014240
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. Assume the infinite bus ... $pu$. Neglect stator resistance. The reactive power $(Q)$ in $pu$ supplied by the generator to the bus under this condition is _________.
asked
Feb 12, 2017
in
Power Systems
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
infinitebus
realpower
numericalanswers
0
votes
0
answers
12
GATE2014250
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 $LSB$). The equivalent minimized expression of the function is $(\bar{B}+C)(\bar{A}+C)(\bar{A}+\bar{B})(\bar{C}+D)$ ... $(\bar{B}+C)(A+\bar{B})(\bar{A}+\bar{B})(\bar{C}+D)$
asked
Feb 12, 2017
in
Analog and Digital Electronics
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
booleanfunction
leastsignificantbit
0
votes
0
answers
13
GATE2014247
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 $R_1$= $300$ Ω and $R_2$= $200$ Ω will have tolerance of $0.5$% $1$% $1.2$% $2$%
asked
Feb 12, 2017
in
new
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
parallelcombination
tolerance
0
votes
0
answers
14
GATE2014246
The second order dynamic system $\frac{dX}{dt}=PX+Qu$ $y=RX$ has the matrices $P$, $Q$ and $R$ as follows: $P=\begin{bmatrix} 1 & 1\\ 0& 3 \end{bmatrix}$ ... system has the following controllability and observability properties: Controllable and observable Not controllable but observable Controllable but not observable Not controllable and not observable
asked
Feb 12, 2017
in
Control Systems
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
dynamicsystem
controlability
0
votes
0
answers
15
GATE2014245
For the transfer function $G(s)=\frac{5(s+2)}{s(s+0.25)(s^2+4s+25)}$ The values of the constant gain term and the highest corner frequency of the Bode plot respectively are $3.2$ , $5.0$ $16.0$ , $4.0$ $3.2$ , $4.0$ $16.0$ , $5.0$
asked
Feb 12, 2017
in
Control Systems
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
transferfunction
gain
bodeplot
0
votes
0
answers
16
GATE2014242
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 per kilometer of each ... $4.2\times 10^{9}F$ $8.4\times 10^{9}F$ $4.2\times 10^{12}F$ $8.4\times 10^{12}F$
asked
Feb 12, 2017
in
Electromagnetic Fields
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
relativepermitivity
permeability
0
votes
0
answers
17
GATE2014236
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. The line current of the machine in both the cases is $50$ $A$. The ratio of the speed as a generator to the speed as a motor is ____________.
asked
Feb 12, 2017
in
Electrical Machines
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
coreresistance
armaturewinding
numericalanswers
0
votes
0
answers
18
GATE2014231
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 ___________.
asked
Feb 12, 2017
in
Electrical Circuits
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
powerloss
reactance
numericalanswers
0
votes
0
answers
19
GATE2014239
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 $10$
asked
Feb 12, 2017
in
Electrical Machines
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
hysterisisloss
eddycurrentloss
0
votes
0
answers
20
GATE2014238
A 20pole 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 singlephase winding, the generated voltage is $V_1$. If the coils are reconnected to realize threephase starconnected ... layer winding, the ratio $V_1$/$V_2$ is $\frac{1}{\sqrt{3}}$ $\frac{1}{2}$ $\sqrt{3}$ $2$
asked
Feb 12, 2017
in
Electrical Machines
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
fullpitchedwinding
generator
0
votes
0
answers
21
GATE2014237
A threephase slipring 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 of primemover in anti ... $f$ $f_r$ and $f$ $f$  $f_r$ and $f$+$f_r$ $f$ + $f_r$ and $f$$f_r$
asked
Feb 12, 2017
in
Electrical Machines
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
primemover
sliprings
commutator
0
votes
0
answers
22
GATE2014235
A $10$ $kHz$ evensymmetric 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$.
asked
Feb 12, 2017
in
Analog and Digital Electronics
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
bandlimitingcircuit
filters
0
votes
0
answers
23
GATE2014234
An input signal $x(t)=2+5sin(100\pi t)$ is sampled with a sampling frequency of $400$ $Hz$ and applied to the system whose transfer function is represented by $\frac{Y(z)}{X(z)}=\frac{1}{N}(\frac{1Z^{N}}{1Z^{1}})$ where, $N$ represents the number of samples per cycle. The output $y(n)$ of the system under steady state is $0$ $1$ $2$ $5$
asked
Feb 12, 2017
in
Signals and Systems
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
transferfunction
samplingpercycle
0
votes
0
answers
24
GATE2014233
A discrete system is represented by the difference equation $\begin{bmatrix} X_1(k+1)\\ X_2(k+2) \end{bmatrix}=\begin{bmatrix} a & a1\\ a+1 & a \end{bmatrix}\begin{bmatrix} X_1(k)\\X_2(k) \end{bmatrix}$ It has initial conditions $X_1(0)$ = $1$; $X_2(0)$ = $0$. The pole locations of the system for $a$ = $1$, are $1\pm j0$ $1\pm j0$ $\pm 1+j0$ $0\pm j1$
asked
Feb 12, 2017
in
Control Systems
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
bodeplot
stabilitystudy
0
votes
0
answers
25
GATE2014232
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 $\frac{\mu i}{2\pi d}$ (in $SI$ units) (in SI units). An infinitely extended wire is laid along the xaxis and is carrying current of $4$ ... $weber/m^2$ $\frac{4}{3\pi }\hat{i}$ $A/m$ $\frac{3}{2\pi }\hat{k}$ $A/m$ $0$ $A/m$
asked
Feb 12, 2017
in
Electromagnetic Fields
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
fluxdensity
fieldintensity
0
votes
0
answers
26
GATE2014230
The voltage across the capacitor, as shown in the figure, is expressed as $V_c(t)=A_1sin(\omega _1t\Theta _1)+A_2sin(\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$
asked
Feb 12, 2017
in
Electrical Circuits
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
sinusoidalvoltagesource
0
votes
0
answers
27
GATE2014229
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$
asked
Feb 12, 2017
in
Analog and Digital Electronics
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
clippercircuits
diodes
0
votes
0
answers
28
GATE2014227
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 ______.
asked
Feb 12, 2017
in
Probability & Statistics
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
randomvariable
probabilitydensityfunction
numericalanswers
0
votes
0
answers
29
GATE2014224
A stepup 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 ____________.
asked
Feb 12, 2017
in
Analog and Digital Electronics
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
boostconverter
numericalanswers
0
votes
0
answers
30
GATE2014223
The sinusoidal ac source in the figure has an rms value of $\frac{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 _________.
asked
Feb 12, 2017
in
new
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
zenerdiode
reversesaturationcurrent
numericalanswers
0
votes
0
answers
31
GATE2014222
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 ______________.
asked
Feb 12, 2017
in
Analog and Digital Electronics
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
gainfactor
bjttransistor
numericalanswers
0
votes
0
answers
32
GATE2014220
While measuring power of a threephase balanced load by the twowattmeter method, the readings are $100$ $W$ and $250$ $W$. The power factor of the load is ______.
asked
Feb 12, 2017
in
Power Systems
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
balancedloads
powerfactor
numericalanswers
0
votes
0
answers
33
GATE2014219
The sawtooth voltage waveform shown in the figure is fed to a moving iron voltmeter. Its reading would be close to _____________
asked
Feb 12, 2017
in
Electrical Circuits
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
waveforms
voltmeter
numericalanswers
0
votes
0
answers
34
GATE2014217
The closed loop transfer function of a system is $T(s)=\frac{4}{s^2+0.4S+4}$ The steady state error due to unit step input is __________.
asked
Feb 12, 2017
in
Control Systems
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
unitstepfunction
closedloopsystem
numericalanswers
0
votes
0
answers
35
GATE2014228
The minimum value of the function $f(x)=x^33x^224x+100$ in the interval $[3,3]$ is $20$ $28$ $16$ $32$
asked
Feb 12, 2017
in
Calculus
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
linearfunctions
0
votes
0
answers
36
GATE2014226
To evaluate the double integral $\int_{0}^{8}(\int_{(y/2)}^{y/2+1}(\frac{2xy}{2})dx)dy$ , we make the substitution $u=(\frac{2xy}{2})$ and $v=\frac{y}{2}$ The integral will reduce $\int_{0}^{4}(\int_{0}^{2}2udu) dv$ $\int_{0}^{4}(\int_{0}^{1}2udu) dv$ $\int_{0}^{4}(\int_{0}^{1}udu) dv$ $\int_{0}^{4}(\int_{0}^{2}udu) dv$
asked
Feb 12, 2017
in
Differential Equations
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
integral
upperlimit
lowerlimit
0
votes
0
answers
37
GATE2014225
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 relating to low ... from its rated value. At low frequency, the motor saturates. At low frequency, the stator flux remains unchanged at its rated value.
asked
Feb 12, 2017
in
Electrical Machines
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
frequencydrives
frequencyharmonics
0
votes
0
answers
38
GATE2014221
Which of the following is an invalid state in an $8$$4$$2$$1$ Binary Coded Decimal counter $1$ $0$ $0$ $0$ $1$ $0$ $0$ $1$ $0$ $0$ $1$ $1$ $1$ $1$ $0$ $0$
asked
Feb 12, 2017
in
Analog and Digital Electronics
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
binarycode
counter
0
votes
0
answers
39
GATE2014218
The state transition matrix for the system $\begin{bmatrix} \dot{x_1}\\ \dot{x_2} \end{bmatrix}=\begin{bmatrix} 1 & 0\\ 1 & 1 \end{bmatrix}\begin{bmatrix} x_1\\ x_2 \end{bmatrix}+\begin{bmatrix} 1\\ 1 \end{bmatrix}u$ ... $\begin{bmatrix} e^t &te^t \\ 0&e^t \end{bmatrix}$
asked
Feb 12, 2017
in
Calculus
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
state
transition
matrix
0
votes
0
answers
40
GATE201429
Consider an LTI system with transfer function $H(s)=\frac{1}{s(s+4)}$ If the input to the system is $cos(3t)$ and the steady state output is $Asin(3t+\alpha )$ , then the value of $A$ is $1/30$ $1/15$ $3/4$ $4/3$
asked
Feb 12, 2017
in
Control Systems
by
makhdoom ghaya
(
9.3k
points)
gate2014ee2
lineartimeinvariantsystem
transferfunction
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