Automatic Control Systems
The addition of a pole to the open loop transfer function pulls the root locus

To the right
None of these
Towards right or left depending on the position of new pole
To the left and making the system more stable

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Automatic Control Systems
Which of the following features is not associated with Nichols chart?

It is symmetric about -180°
(0 dB, -180°) point on Nichols chart represent critical Point (-1, 0)
M loci are centred about (0 dB, -180°) point
The frequency at intersection of G(j?) locus and M = +3 dB locus gives bandwidth of closed loop system

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