Control Systems - ECE Questions and Answers

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A unity feedback system has Open loop Transfer system s/(s+1), Then Closed loop Transfer function is

s/2s+1

s/s+1

2s/s+2

s/s+2

Answer : Option A

Explanation :

Open loop Transfer system = s/(s+1)

Closed loop Transfer function = (s/s+1)/1+(s/(s+1)*1)=s/s+1+s=s/2s+1

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