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Recent questions tagged stability
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GATE201340
The signal flow graph for a system is given below. The transfer function $\frac{Y(s)}{U(s)}$ for this system is $\frac{s+1}{5s^2+6s+2}$ $\frac{s+1}{s^2+6s+2}$ $\frac{s+1}{s^2+4s+2}$ $\frac{1}{5s^2+6s+2}$
asked
Feb 12, 2017
in
Control Systems
by
piyag476
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1.5k
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gate2013ee
controllers
stability
0
votes
0
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2
GATE201315
The Bode plot of a transfer function $G(s)$ is shown in the figure below. The gain ($20$ log$G(s)$ ) is $32$ $dB$ and –$8$ $dB$ at $1$ rad/s and $10$ rad/s respectively. The phase is negative for all $ω$. Then $G(s)$ is $\frac{39.8}{s}$ $\frac{39.8}{s^2}$ $\frac{32}{s}$ $\frac{32}{s^2}$
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Feb 12, 2017
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Control Systems
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piyag476
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gate2013ee
gain
stability
0
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0
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3
GATE20135
Which of the following statement is NOT TRUE for a continuous time causal and stable $LTI$ system? All the poles of the system must lie on the left side of jw axis Zeros of the system can lie anywhere in the $splane$. All the poles must lie within $s$=$1$. All the roots of the characteristic equation must be located on the left side of jw axis
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Feb 12, 2017
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Control Systems
by
piyag476
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1.5k
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gate2013ee
stability
blockdiagram
0
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0
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4
GATE2014346
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 $30^0$ and $1.73$ $dB$ $30^0$ and $477$ $dB$ $+30^0$ and $4.77$ $dB$ $+30^0$ and $1.73$ $dB$
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Feb 12, 2017
in
Control Systems
by
makhdoom ghaya
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9.2k
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gate2014ee3
bodeplot
stability
0
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0
answers
5
GATE2014317
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 $h_0=b_0b_1a_1$ , the inputoutput transfer function, $G(s)=\frac{C(s)}{U(s)}$ of the system is given by $G(s)=\frac{b_0s+b_1}{s^2+a_0s+a_1}$ $G(s)=\frac{a_1s+a_0}{s^2+b_1s+b_0}$ $G(s)=\frac{b_1s+b_0}{s^2+a_1s+a_0}$ $G(s)=\frac{a_0s+a1}{s^2+b_0s+b_1}$
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Feb 12, 2017
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Control Systems
by
makhdoom ghaya
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9.2k
points)
gate2014ee3
stability
bodeplot
0
votes
0
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6
GATE2014310
For the signal $f(t)=3sin8\pi t+6sin12\pi t+sin14\pi t$ , the minimum sampling frequency (in $Hz$) satisfying the Nyquist criterion is _________.
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Feb 12, 2017
in
Signals and Systems
by
makhdoom ghaya
(
9.2k
points)
gate2014ee3
samplingfrequency
stability
0
votes
0
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7
GATE2014144
For the given system, it is desired that the system be stable. The minimum value of $\alpha$ for this condition is _______________ .
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Feb 12, 2017
in
Control Systems
by
makhdoom ghaya
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9.2k
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gate2014ee1
feedbacksystem
stability
0
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0
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8
GATE2014118
The root locus of a unity feedback system is shown in the figure The closed loop transfer function of the system is $\frac{C(s)}{R(s)}=\frac{K}{(s+1)(s+2)}$ $\frac{C(s)}{R(s)}=\frac{K}{(s+1)(s+2)+K}$ $\frac{C(s)}{R(s)}=\frac{K}{(s+1)(s+2)K}$ $\frac{C(s)}{R(s)}=\frac{K}{(s+1)(s+2)+K}$
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Feb 12, 2017
in
Control Systems
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makhdoom ghaya
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9.2k
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gate2014ee1
stability
bodeplot
0
votes
0
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9
GATE2015225
Nyquist plots of two functions $G_{1}(s)$ and $G_{2}(s)$ are shown in figure. Nyquist plot of the product of $G_{1}(s)$ and $G_{2}(s)$ is
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Feb 12, 2017
in
Control Systems
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makhdoom ghaya
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9.2k
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gate2015ee2
stability
realroots
imaginaryroots
0
votes
0
answers
10
GATE2015124
A Bode magnitude plot for the transfer function $G(s)$ of a plant is shown in the figure. Which one of the following transfer functions best describes the plant? $\frac{1000(s+10)}{s+1000}$ $\frac{10(s+10)}{s(s+1000)}$ $\frac{s+1000}{10s(s+10)}$ $\frac{s+1000}{10(s+10)}$
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Feb 12, 2017
in
Control Systems
by
makhdoom ghaya
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9.2k
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gate2015ee1
bodeplot
stability
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