return path
English
Noun
return path (plural return paths)
- (electricity) The route by which a current or signal returns to its source, or to earth.
- 2012, Andrew Martin, Underground Overground: A passenger's history of the Tube, Profile Books, →ISBN, page 136:
- The inner, or negative, rail is also known as the 'current return' rail, because electrical current needs a circuit - a return path to earth, in other words.
References
- “return path” in Lexico, Dictionary.com; Oxford University Press.