engineering recuitment GATE ECE 2023-24 Test Series Control Systems Frequency Response Analysis Nyquist Plot
The open-loop transfer function of a unity feedback system is given by
\(G\left( s \right) = \frac{{10}}{{s\left( {\frac{s}{5} + 1} \right)\left( {\frac{s}{{20}} + 1} \right)}}\)
In G(s) plane, the Nyquist plot of G(s) passes through the negative real axis at the point:1
(-0.4, 0)
2
(-2.5, 0)
3
(-4, 0)
4
(-0.25, 0)