Question:

Consider a unity feedback control system whose forward path transfer function is \( G(s) = \frac{K}{s^2} \). The steady state error for a step input is:

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Type-2 systems have zero steady-state error for step and ramp inputs.
Updated On: June 02, 2025
  • 1.0
  • infinity
  • 0.0
  • does not exist
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The Correct Option is C

Solution and Explanation

The system is Type-2 (two poles at origin), so for a step input, the steady state error is zero. According to standard error constants:
- For step input, error \( e_{ss} = 0 \) if system is Type-2.
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