Numerical -Initial slope of magnitude plot for given O.L.T.F

Q.  If the unity feedback system is given by the open loop transfer function G(s) = ks2 / [(1 + 0.3s) (1+ 0.05s)], what would be the initial slope of magnitude plot?
- Published on 09 Oct 15

a. 20 dB/decade
b. 40 dB/decade
c. 60 dB/decade
d. Unpredictable

ANSWER: 40 dB/decade

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    Discussion

  • GADVALA SUDHA   -Posted on 23 Mar 25
    Initial we are having 2 zeroes ,when we have zero it makes +20 db/dec,so we have 2 zeros = 40 db/dec

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