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The Bode plot of a transfer function $G(s)$ is shown in the figure below.

The gain ($20$ log|$G(s)$| ) is $32$ $dB$ and –$8$ $dB$ at $1$ rad/s and $10$ rad/s respectively. The phase is
negative for all $ω$. Then $G(s)$ is

  1.  $\frac{39.8}{s}$
  2.  $\frac{39.8}{s^2}$
  3.  $\frac{32}{s}$
  4.  $\frac{32}{s^2}$


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