Control Systems
A negative feedback closed loop control system is supplied to an input of 5 volt. The system has a forward gain of 1 and a feedback gain of 1. What is the output voltage?

  2.5 Volt.
  1.0 Volt.
 2.0 Volt.
 1.5 Volt.

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Control Systems
For a transfer function H (s) = P(s) / Q(s), where P (s) and Q (s) are polynomials in s. Then

 the degree of P (s) and Q (s) are same.
 the degree of P (s) is always greater than the degree of Q (s).
  degree of P (s) is independent of degree of Q (s).
 maximum degree of P (s) and Q (s) differ at most by one.

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