Project ForgeInstrumentation & Process Control
Controller Modes
GATE 2016
Medium
A system exhibits inverse response for a unit step change in input. Which statement must necessarily be satisfied?
- AThe transfer function has at least one negative pole
- BThe transfer function has at least one positive pole
- CThe transfer function has at least one negative zero
- The transfer function has at least one positive zero
Explanation
Inverse response requires a right-half-plane (positive) zero in the transfer function.
Source: GATE CH 2016 (2016)
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