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Control Systems
Find the Laplace transform for sinωt?
1/s²
1/s
s/(s²+ω²)
ω/(s²+ω²)
1/s²
1/s
s/(s²+ω²)
ω/(s²+ω²)
Answer
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Related Question
Control Systems
A unity feedback control system has forward loop transfer function as e-Ts/s(s+1). Its phase value will be zero at frequency ω1. Which of the following equations should be satisfied by ω1?
Tω1 = cot(ω1)
Tω1 = tan(ω1)
ω1 = cot(Tω1)
ω1 = tan(Tω1)
Tω1 = cot(ω1)
Tω1 = tan(ω1)
ω1 = cot(Tω1)
ω1 = tan(Tω1)
Answer
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Control Systems
When the system gain is doubled the gain margin becomes?
2 times
Remains unaffected
1/2 times
None of these
2 times
Remains unaffected
1/2 times
None of these
Answer
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Control Systems
In signal flow graph input node is node having only------------
both 1 and 2.
incoming branches.
None of these
outgoing branches.
both 1 and 2.
incoming branches.
None of these
outgoing branches.
Answer
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Control Systems
Which of the following is the analogous quantity for mass element in force-voltage analogy?
Capacitance.
Inductance.
All of these
Resistance.
Capacitance.
Inductance.
All of these
Resistance.
Answer
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Control Systems
The value of 'a' in to give phase margin = 45o will be
1.414.
0.9.
0.707.
1.18.
1.414.
0.9.
0.707.
1.18.
Answer
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