Hierarchy classification:

1. top of the aat hierarchies
2. Physical Attributes Facet
3. Conditions and Effects (hierarchy name)
4. [conditions and effects by specific type]
5. [conditions and effects for electronics]

Anotations

Scope note:

In electronics, the result of the return of an output signal from a circuit to the input of the same system. Feedback can be used to boost a signal, though in many cases it is an unwanted byproduct of a signal path, equivalent to noise.