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Automatic Control Systems

Automatic Control Systems
The permanent magnet field system of brushless dc servo- motor is generally on

Partly on stator and partly on rotor
Stator
Rotor
Either (a) or (b)

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Automatic Control Systems
The poles with greater displacement from the real axis correspond to

Unbounded output
Lower frequencies of oscillations
Higher frequencies of oscillations
Stable response

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Automatic Control Systems
Temperature is analogous to

Charge
Voltage
Flux
None of these

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Automatic Control Systems
A conditionally stable system is stable for the value of gain between two critical values. It is unstable if

None of these
Both A and B
The gain is increased beyond upper critical value
The gain is decreased below lower critical value

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Automatic Control Systems
The relative stability of a system is given by

Either (a) or (b)
Phase margin alone
Both phase and gain margins
Gain margin alone

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Automatic Control Systems
Bandwidth is proportional to speed of response.

True
False

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