Stability Theory » Exercise - 254. The damping ratio of a second-order system is 0.2. Its phase margin is approximately : (a) 0.4˚ (b) 2˚ (c) 20˚ (d) 40˚
Stability Theory » Exercise - 260. The open - loop transfer function of a second-order system is G(s) = 20/(s + 1)(s + 10) (a) 0 dB (b) 20 dB (c) ∞ dB (d) 2 dB
Stability Theory » Exercise - 255. A polar plot crosses the real axis at (-1 + j0) point. The gain margin of the system is : (a) -1˚ (b) 0˚ (c) -180˚ (d) +180˚
Stability Theory » Exercise - 256. In second-order systems, the gain margin is a constant at : (a) zero value (b) finite value (c) infinite value (d) none of these
Tags: stability, theory, exercise, gain, margin, electronics, engineering