Control Systems
Which of the following is the correct expression for the transfer function of an electrical RC phase lag compensating network?

 C/(1+RCS)
 RC/(1+RCS)
 1/(1+RCS)
 RCS/(1+RCS)

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Control Systems
In the integral control of the single area system frequency error is reduced to zero. Then

 integrator o/p decreases and speed changer position comes down.
 integrator o/p decreases but speed changer position moves up.
  integrator output and speed changer position attain a constant value.
 integrator o/p increases but speed changer position comes down.

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