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Hot questions in Electrical Circuits
0
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1
GATE201326
A strain gauge forms one arm of the bridge shown in the figure below and has a nominal resistance without any load as $R_s = 300$ . Other bridge resistances are $R_1 = R_2 = R_3 = 300$ . The maximum permissible current through the strain gauge is $20\:mA$. During certain measurement ... $1\%$ over the nominal value, the output voltage $V_0$ in $mV$ is $56.02$ $40.83$ $29.85$ $10.02$
asked
Feb 12, 2017
in
Electrical Circuits
by
piyag476
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1.5k
points)
gate2013ee
bridgecircuit
variableresistor
0
votes
0
answers
2
GATE2015146
In a linear twoport network, when $10$ V is applied to Port $1$, a current of $4$ A flows through Port $2$ when it is shortcircuited. When $5$ V is applied to Port $1$, a current of $1.25$ A flows through a $1 \Omega$ resistance connected across Port $2$. When $3$ V is applied to Port $1$, the current (in Ampere) through a $2 \Omega$ resistance connected across Port $2$ is ________.
asked
Feb 12, 2017
in
Electrical Circuits
by
makhdoom ghaya
(
9.2k
points)
gate2015ee1
network
nodalanalysis
numericalanswers
0
votes
0
answers
3
GATE201438
The driving point impedance $Z(s)$ for the circuit shown below is $\frac{s^4+3s^2+1}{s^3+2s} \\ $ $\frac{s^4+2s^2+1}{s^2+2} \\ $ $\frac{s^2+1}{s^4+s^2+1} \\$ $\frac{s^3+1}{s^4+s^2+1}$
asked
Feb 12, 2017
in
Electrical Circuits
by
makhdoom ghaya
(
9.2k
points)
gate2014ee3
passiveloads
driving
point
impedance
0
votes
0
answers
4
GATE2014120
In an oscilloscope screen, linear sweep is applied at the vertical axis horizontal axis origin both horizontal and vertical axis
asked
Feb 12, 2017
in
Electrical Circuits
by
makhdoom ghaya
(
9.2k
points)
gate2014ee1
oscilloscope
linear
sweep
0
votes
0
answers
5
GATE201322
Three moving iron type voltmeters are connected as shown below. Voltmeter readings are $V$, $V1$ and $V2$ , as indicated. The correct relation among the voltmeter readings is $V=\dfrac{V1}{\sqrt{2}}+\dfrac{V2}{\sqrt{2}}$ $V =V_1 +V_2$ $V =V_1V_2$ $V =V_2  V_1$
asked
Feb 12, 2017
in
Electrical Circuits
by
piyag476
(
1.5k
points)
gate2013ee
voltagesource
lcfilter
0
votes
0
answers
6
GATE201327
In the circuit shown below, the knee current of the ideal Zener diode is $10$ $mA$. To maintain $5$ $V$ across $R_L$ minimum value of $R_L$ in $\Omega$ and the minimum power rating of the Zener diode in $mW$ respectively are $125$ and $125$ $125$ and $250$ $250$ and $125$ $250$ and $250$
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Feb 12, 2017
in
Electrical Circuits
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piyag476
(
1.5k
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gate2013ee
reversesaturationcurrent
nodalanalysis
0
votes
0
answers
7
GATE2014147
The reading of the voltmeter $(rms)$ in volts, for the circuit shown in the figure is __________
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Feb 12, 2017
in
Electrical Circuits
by
makhdoom ghaya
(
9.2k
points)
gate2014ee1
nodalanalysis
voltmeter
numericalanswers
0
votes
0
answers
8
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
(
9.2k
points)
gate2014ee2
currentmeasurement
voltagemeasurement
numericalanswers
0
votes
0
answers
9
GATE201416
The three circuit elements shown in the figure are part of an electric circuit. The total power absorbed by the three circuit elements in watts is __________.
asked
Feb 12, 2017
in
Electrical Circuits
by
makhdoom ghaya
(
9.2k
points)
gate2014ee1
nodalanalysis
dcsupply
kcl
numericalanswers
0
votes
0
answers
10
GATE201329
In the circuit shown below, if the source voltage $V_S=100 \: \angle$ $53.13^{\circ}$ V then the Thevenin’s equivalent voltage in Volts as seen by the load resistance $R_L$ is $100\angle 90^{\circ}$ $800\angle 0^{\circ}$ $800\angle 90^{\circ}$ $100\angle 60^{\circ}$
asked
Feb 12, 2017
in
Electrical Circuits
by
piyag476
(
1.5k
points)
gate2013ee
thevinincircuit
meshanalysis
0
votes
0
answers
11
GATE201331
A voltage $1000 \sin \omega t$ Volts is applied across $YZ$. Assuming ideal diodes, the voltage measured across $WX$ in Volts is $\sin \omega t$ $(\sin \omega t + \sin \omega t ) / 2$ $(\sin \omega t  \sin \omega t ) / 2$ $0$ for all $t$
asked
Feb 12, 2017
in
Electrical Circuits
by
piyag476
(
1.5k
points)
gate2013ee
closedloop
diode
0
votes
0
answers
12
GATE201427
The switch SW shown in the circuit is kept at position $'1'$ for a long duration. At $t$ = $0+$, the switchis moved to position $'2'$. Assuming $V_o2$ > $V_o1$, the voltage $v_c$(t) across the capacitor is $V_c (t)=V_{o2}(1e^{t/2RC})V_{o1}$ ... $V_{o2}$+$V_{o1}$)$(1e^{t/2RC})V_{o1}$ $V_c (t)=$($V_{o2}$+$V_{o1}$)$(1e^{t/2RC})+V_{o1}$
asked
Feb 12, 2017
in
Electrical Circuits
by
makhdoom ghaya
(
9.2k
points)
gate2014ee2
switchingschemes
loads
0
votes
0
answers
13
GATE201515
When the Wheatstone bridge shown in the figure is used to find the value of resistor $R_{X}$, the galvanometer $G$ indicates zero current when $R_{1}=50\Omega, R_{2}=65\Omega$ and $R_{3}=100\Omega$. If $R_{3}$ is known with $ 5$% tolerance on its nominal value of $100 \Omega$ , ... range of $R_{X}$ in Ohms? $[123.50, 136.50]$ $[125.89, 134.12]$ $[117.00, 143.00]$ $[120.25, 139.75]$
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Feb 12, 2017
in
Electrical Circuits
by
makhdoom ghaya
(
9.2k
points)
gate2015ee1
bridgecircuit
galvanometer
tolerance
0
votes
0
answers
14
GATE20137
A source $V_s(t) =V\cos100\pi t$ has an internal impedance of $(4+j3) \Omega$.If a purely resistive load connected to this source has to extract the maximum power out of source, its value in $\Omega$ should be $3$ $4$ $5$ $7$
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Feb 12, 2017
in
Electrical Circuits
by
piyag476
(
1.5k
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gate2013ee
nodalanalysis
meshanalysis
0
votes
0
answers
15
GATE2014354
A diode circuit feeds an ideal inductor as shown in the figure. Given $v_s$=100 sin($w_t$) $V$ where $ω$ = $100\pi$ $rad/s$, 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 ________.
asked
Feb 12, 2017
in
Electrical Circuits
by
makhdoom ghaya
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9.2k
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gate2014ee3
timeresponse
peakvalue
numericalanswers
0
votes
0
answers
16
GATE2014330
The power delivered by the current source, in the figure, is ________.
asked
Feb 12, 2017
in
Electrical Circuits
by
makhdoom ghaya
(
9.2k
points)
gate2014ee3
currentsource
negativepower
numericalanswers
0
votes
0
answers
17
GATE2014130
In the figure, the value of resistor $R$ is $(25 + I/2)\: \text{ohms},$ where $I$ is the current in amperes. The current $I$ is ________
asked
Feb 12, 2017
in
Electrical Circuits
by
makhdoom ghaya
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9.2k
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gate2014ee1
loopanalysis
dcsupply
numericalanswers
0
votes
0
answers
18
GATE2014347
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 $\sqrt{\frac{3}{2}}$ $\sqrt{\frac{2}{3}}$ $\frac{3}{2}$ $\frac{2}{3}$
asked
Feb 12, 2017
in
Electrical Circuits
by
makhdoom ghaya
(
9.2k
points)
gate2014ee3
waveforms
periodicfunctions
0
votes
0
answers
19
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
(
9.2k
points)
gate2014ee2
waveforms
voltmeter
numericalanswers
0
votes
0
answers
20
GATE2014129
An incandescent lamp is marked $40\:W, 240\: V$. If resistance at room temperature $(26^{\circ}C)$ is $120\:\Omega$, and temperature coefficient of resistance is $4.5\times 10^{3} / ^{\circ}C$, then its $ON$ state filament temperature in $^{\circ}C$ is approximately _______
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Feb 12, 2017
in
Electrical Circuits
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makhdoom ghaya
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9.2k
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gate2014ee1
incandescent
lamp
filament
numericalanswers
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