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Automatic Control Systems

Q1: Consider the following statements:
  1. The positiveness of coefficients of characteristic equation is necessary as well as sufficient condition for stability of first and second order systems.
  2. The positiveness of coefficients of characteristic equation ensures negativeness of real roots but is not sufficient condition for stability of third and higher order systems.
Out of above statements:

A only 1 is correct

B both 1 and 2 are correct

C only 2 is correct

D both are wrong

ANS:B - both 1 and 2 are correct

No answer description is available.



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