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Control Systems

Control Systems
Which of the following is the electrical analogous element for displacement in force-voltage analogy?

 Voltage.
 Charge.
 Flux.
 Current.

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Control Systems
The impulse response of the system described by the differential equation will be

 e-3t u(t).
 e6t.
 1/3.
 (1/3) × (1-e-3t).

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Control Systems
A unity feed back system has forward transfer function The range of k for the system to be stable is

None of these
 0 < k < 3900.
 0 < k < 390.
 0 < k < 39.

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Control Systems
Given the Laplace transform of f(t) = F(s), the Laplace transform of (f(t)e-at) is equal to

 eas*F(s)
 F(s)/(s+a)
 e-as*F(s)
 F(s+a)

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Control Systems
A second order system has peak over shoot = 50% and period of oscillations 0.2 seconds. Find the resonant frequency?

 31.41 rad/s
 30.63 rad/s
 29.74 ra/s
 32.16 rad/s

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Control Systems
The initial slope of Bode plot for a transfer function having no poles at the origin is

 -10dB/decade.
 0 dB/decade
 +10dB/decade.
 -20dB/decade.

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