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Automatic Control Systems - Engineering

Q1:

For the system in the given figure, the characteristic equation is

A s2 + s(3 + 6a) + 6 = 0

B s2 + s(3 + 12a) + 12 = 0

C s2 + 3s = 0

D s2 + 6s = 0

ANS:A - s2 + s(3 + 6a) + 6 = 0

Transfer function to inner loop = . Then . The characteristic equation is s2 + 3s + 6as + 6 = 0.