For type 2 system, the magnitude and phase angle of the term (j?)2 in the denominator, at ? = 0, are respectively
Options
A. 0 and - 90°
B. 0 and + 90°
C. infinity and - 180°
D. infinity and + 180°
Correct Answer
infinity and - 180°
Explanation
If ? = 0, has a magnitude of infinity and phase angle -180°.
More questions
1. If an amplifier with gain of - 1000 and feedback factor ? = - 0.1 had a gain change of 20% due to temperature, the change in gain of the feedback amplifier would be