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Common Ground

What is a common ground?

A common ground is a shared reference point or connection in an electrical circuit where multiple components connect to the same ground potential, typically 0 volts. It provides a return path for current and serves as a voltage reference point for all other signals in the circuit. Common grounds help reduce noise, prevent ground loops, and ensure stable operation by giving all components the same electrical reference point.

Related Terms

Ground/GND

Ground (GND) is a reference point in an electrical circuit that serves as a common return path for electric current and is defined as having zero voltage potential. It provides a stable voltage reference against which all other voltages in the circuit are measured. In electronic circuits, ground connections ensure proper current flow, reduce noise, and provide safety by giving excess electrical energy a safe path to dissipate.