Electrical Engineering > GATE 2024 > System Approximation
Consider the cascaded system as shown in the figure. Neglecting the faster component of the transient response, which one of the following options is a first-order pole-only approximation such that the steady-state values of the unit step responses of the original and the approximated systems are the same?
A
1/(s+1)
B
2/(s+1)
C
1/(s+20)
D
2/(s+20)

Correct : d) 2/(s+20)

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