1.

For the feedback system with closed loop transfer function the settling time for 2% tolerance

A. <img src="/_files/images/electronics-and-communication-engineering/automatic-control-systems/28-265-1.png">
B. <img src="/_files/images/electronics-and-communication-engineering/automatic-control-systems/28-265-2.png">
C. <img src="/_files/images/electronics-and-communication-engineering/automatic-control-systems/28-265-3.png">
D. 4
E. <sub><i>n</i></sub>
Answer» D. 4


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