1
GATE EE 2009
MCQ (Single Correct Answer)
+2
-0.6
A system is described by the following state and output equations
$$${{d{x_1}\left( t \right)} \over {dt}} = - 3{x_1}\left( t \right) + {x_2}\left( t \right) + 2u\left( t \right)$$$
$$${{d{x_2}\left( t \right)} \over {dt}} = - 2{x_2}\left( t \right) + u\left( t \right)$$$
$$y\left( t \right) = {x_1}\left( t \right)$$ when $$u(t)$$ is the input and $$y(t)$$ is the output
The system transfer function is
2
GATE EE 2009
MCQ (Single Correct Answer)
+2
-0.6
A system is described by the following state and output equations
$$${{d{x_1}\left( t \right)} \over {dt}} = - 3{x_1}\left( t \right) + {x_2}\left( t \right) + 2u\left( t \right)$$$
$$${{d{x_2}\left( t \right)} \over {dt}} = - 2{x_2}\left( t \right) + u\left( t \right)$$$
$$y\left( t \right) = {x_1}\left( t \right)$$ when $$u(t)$$ is the input and $$y(t)$$ is the output
The state $$-$$ transition matrix of the above system is
3
GATE EE 2008
MCQ (Single Correct Answer)
+2
-0.6
The state space equation of a system is described by $$\mathop X\limits^ \bullet = AX + BU,\,\,Y = Cx$$ where $$X$$ is state vector, $$U$$ is input, $$Y$$ is output and
$$$A = \left( {\matrix{
0 & 1 \cr
0 & { - 2} \cr
} } \right)\,\,B = \left( {\matrix{
0 \cr
1 \cr
} } \right)\,\,C = \left[ {\matrix{
1 & 0 \cr
} } \right]$$$
The transfer function $$G(s)$$ of this system will be
4
GATE EE 2008
MCQ (Single Correct Answer)
+2
-0.6
The state space equation of a system is described by $$\mathop X\limits^ \bullet = AX + BU,\,\,Y = Cx$$ where $$X$$ is state vector, $$U$$ is input, $$Y$$ is output and
$$$A = \left( {\matrix{
0 & 1 \cr
0 & { - 2} \cr
} } \right)\,\,B = \left( {\matrix{
0 \cr
1 \cr
} } \right)\,\,C = \left[ {\matrix{
1 & 0 \cr
} } \right]$$$
A unity feedback is provided to the above system $$G(s)$$ to make it a closed loop system as shown in figure.
For a unit step input $$r(t),$$ the steady state error in the input will be
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