Automatic Control Systems - ECE Questions and Answers

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For G(jω) =

magnitude is 1 at all frequencies and phase angle varies from 0 to - 180° as ω varies from 0 to ∞

magnitude is T at all frequencies and phase angle 0

magnitude is (1 + ω²T²)^0.5 and phase angle varies from0 to 0 - 180° as ω varies from 0 to ∞

none of the above

Answer : Option A

Explanation :

When ω = 0, phase angle is 0.

For high values of phase angle = - 90° - 90° = 180°.

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