Which of the following controllers has maximum offset ?
Correct answer: B. P-controller
- A. P-I controller
- B. P-controller
- C. P-D controller
- D. P-I-D controller
Explanation
A proportional controller alone leaves a steady-state error, called offset, and its offset is not removed by derivative action. Integral action in PI and PID controllers eliminates offset, making the P controller the intended answer.
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