Q186
Consider the following information regards open loop frequency response of a unity feedback system ω |G(j)| ∠G(j) 2 7.5 -118° 3 4.8 -130° 4 3.15 -140° 5 2.25 -150° 6 1.70 -157° 8 1.00 -170° 10 0.64 -180° The gain and phase margin of the system are respectively:
Consider the following information regards open loop frequency response of a unity feedback system
The gain and phase margin of the system are respectively:
| ω | |G(j)| | ∠G(j) |
| 2 | 7.5 | -118° |
| 3 | 4.8 | -130° |
| 4 | 3.15 | -140° |
| 5 | 2.25 | -150° |
| 6 | 1.70 | -157° |
| 8 | 1.00 | -170° |
| 10 | 0.64 | -180° |
A.
0 dB, -180°
B.
3.86 dB, -180°
C.
0 dB, -10°
D.
3.86 dB, 10°
AnswerAnswer: Option D
Solution
Answer: Option D
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