Multiple choice

The unit-step response of a system starting from rest is given by

c (t) = 1 - e-2t for t $\ge$ 0

The transfer function of the system is

  1. $\dfrac{1}{1+2s}$
  2. $\dfrac{2}{2+s}$
  3. $\dfrac{1}{2+s}$
  4. $\dfrac{2s}{1+2s}$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation