If transfer function of a system is 1 / (τs + 1), then steady state error to unit step input is

If transfer function of a system is 1 / (τs + 1), then steady state e

1.	If transfer function of a system is 1 / (τs + 1), then steady state error to unit step input is
A.	0.5
B.	zero
C.	infinite
D.	none of these
Answer» B. zero

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If transfer function of a system is 1 / (τs + 1), then steady state error to unit step input is

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