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Assertion (A): An on-off controller gives rise to self-sustained oscillation in output.Reason (R): Location of a pair of poles on the imaginary axis gives to self-sustained oscillation is output.(a) Both A and R true and R is correct explanation of A(b) Both A and R are true but R is not correct explanation of A(c) A is true and R is False(d) A is False and R is TrueI had been asked this question in unit test.My enquiry is from Performance Indices in division Time Response Analysis, Design Specifications and Performance Indices of Control Systems

Answer»

The correct option is (a) Both A and R true and R is correct explanation of A

Explanation: An off-off CONTROLLER is the INITIAL version of the PROPORTIONAL controller and it gives the self-sustained oscillations and location of poles on the imaginary AXIS gives the self-sustained oscillations.



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