Automatic Control Systems - Engineering

Q1:

The given figure shows a pole zero diagram. The transfer function G(j1) is

A 0.5 ∠0

B 2.7 ∠- 31°

C 2 ∠45°

D 2 ∠- 67.4°

ANS:A - 0.5 ∠0

Join j1 point with the zero and poles. Find magnitude and phase angles of all these lines.