Question

Tell how many roots of the following polynomial are in the right half-plane, in the left half-plane, and on the jω-axis: P(s) = S 5 + 6S 3 + 5 S 2 + 8S + 20

Answer 1

The roots equation is 1 + G(s) H(s) = 0 for a given open-loop transfer function G(s).

A system can be defined as a group of subsystems that direct or control an input signal to produce the desired output condition, as we saw in the previous tutorial on electronic systems. Open loop systems, however, are any electrical or electronic devices that do not automatically adjust any variations in their output.

Any electronic system's job is to automatically control the output and maintain it within the desired input value, or "set point," of the system. For whatever reason, if the system's input changes, the system's output must change in response and update itself to reflect the new input value.

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