Question: Which of the following indicates a stable system in the root locus plot?

Options:

1. All poles are in the right half-plane.
2. All poles are in the left half-plane.
3. Poles are on the imaginary axis.
4. Poles are outside the unit circle.

Correct Answer: All poles are in the left half-plane.

Solution:

A stable system has all its poles located in the left half-plane of the complex plane.