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Control system miscellaneous

  1. The transfer function of a system is
    10
    1 + s

    When operated as a unity feedback system, the steady state error to a unit step input will be_______
    1. 1 / 11
    2. 4 / 7
    3. 11 / 7
    4. None of the above
Correct Option: A

The given transfer function is to be taken as space open loop transfer function

It is type zero system.
The steady state error to a unit step input will be

ess =
1
1 + K


∴ ess =
1
11



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