What process occurs when an output signal feeds back into the same system as an input signal?

The process where an output signal is fed back into the same system as an input signal is known as feedback. This concept is fundamental in control systems and automation, as it relates to how systems self-regulate and stabilize their output. Feedback can be either positive or negative, with negative feedback helping to reduce errors and stabilize a system, while positive feedback can enhance or amplify certain processes.

In many engineering applications, feedback mechanisms are crucial for achieving desired system behavior, such as maintaining temperature, pressure, or speed. The appropriateness of the feedback depends on the specific application and desired outcomes.

Other terms in the choices, like electrolysis, involve chemical reactions driven by electrical energy, while electrical power pertains to energy consumption rather than signal processing. The term electrical network refers to a system of interconnected electrical components but does not specifically address the feedback mechanism in signal processing or control systems. Thus, feedback is the only option that accurately describes the process of an output interacting with the system to influence future behavior.