1.

The unit step response of a particular control system is given by c(t) = 1 – 10e-t. Then its transfer function is

A. \(\frac{10}{(s + 1)}\)
B. \(\frac{(s - 9)}{(s + 1)}\)
C. \(\frac{(1 – 9s)}{(s + 1)}\)
D. \(\frac{(1 – 9s)}{s(s + 1)}\)
Answer» D. \(\frac{(1 – 9s)}{s(s + 1)}\)


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