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The output of the feedback control system must be a function of:

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The output of the feedback control system must be a function of:

(a) Reference input

(b) Reference output

(c) Output and feedback signal

(d) Input and feedback signal

I had been asked this question in final exam.

This intriguing question originated from Transfer Functions topic in section Mathematical Models of Physical Systems of Control Systems

1 Answer

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The correct answer is (d) Input and feedback signal

Easiest explanation: Feedback control system has the property of reducing the error and that is by differencing the output with the desired output and as the equation of the output of the system is C=GR/1+GH.

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