Characteristic equation is the denominator of ____________ loop transfer function?
Correct answer: B. Closed
- A. Open
- B. Closed
- C. Both A. and B.
- D. Neither A. nor B.
Explanation
For a feedback system, the characteristic equation is obtained by setting the denominator of the closed-loop transfer function to zero, commonly written as 1 + G(s)H(s) = 0. The open-loop denominator alone does not represent the closed-loop characteristic equation.
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