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Control Systems
A function y (t) satisfies the following differential equation : Where, δ (t) is the delta function. Assuming zero initial condition and denoting the unit step function by u(t), y(t) can be formed as
et.
e-t.
e-tu(t).
etu(t).
et.
e-t.
e-tu(t).
etu(t).
Answer
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Related Question
Control Systems
what is the Laplace transform of a function δ(t-2)?
0
2
2s
e-2s
0
2
2s
e-2s
Answer
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Control Systems
A linear time invariant system, initially at rest when subjected to a unit step input gave response c(t) = te-t (t ≥ 0). The transfer function of the system is
1/s(s+1)2
s/(s+1)
(s+1)2/s
s/(s+1)2
1/s(s+1)2
s/(s+1)
(s+1)2/s
s/(s+1)2
Answer
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Control Systems
Consider the function F(s) = ω/(s²+ω²). Where F(s) = Laplace transform of f(t). The final value of f(t) is equal to
finite constant
infinite
a value between -1 and +1
zero
finite constant
infinite
a value between -1 and +1
zero
Answer
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Control Systems
Sparking between the contacts can be reduced by inserting
a resistor in the line.
a capacitor in parallel with the contacts.
a reactor in the line.
a capacitor in series with the contacts.
a resistor in the line.
a capacitor in parallel with the contacts.
a reactor in the line.
a capacitor in series with the contacts.
Answer
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Control Systems
The transfer function of a system is G(s) = 100/((s+1)(s+100)). For unit step input to the system the approximate settling time for 2% criterion is
10 sec
4 sec
400 sec
100 sec
10 sec
4 sec
400 sec
100 sec
Answer
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