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The Transfer function of a system is
What is the steady state error when applied u(t) to closed loop system with unity feedback—K T + s
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T K
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K K + T
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T T + K - K + T
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Correct Option: C
The given system in zero order system. It has position error, and the steady state error is given by
| ess = | A |
| 1 + kp |
A = 1 for unit step
Kp = s →Lim 0 G(s) H(s)
| = s → 0Lim |  | K |  | . 1 = | K |
| T + s | T |
| ess = | 1 | = | T |
| 1 + K/T | T + K |
