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GroundThe ground or Earth ground is the common point in an electrical or electronic circuit. All electrons flow toward the path of least potential difference. A properly grounded system causes errant current to flow into the ground thereby not damaging people or equipment. When working with electronics, ground may be abbreviated as GND and have a symbol that resembles a down arrow, like the one shown to the right.

Tip: When working inside a computer or other electrical equipment it is important that you ground yourself first to prevent ElectroStatic Discharge.

Also see: ESD, Grounding, Power terms