What is ground?

ground

Glossary “ground” Definition:
1). The common return path for electric current in a system, component, or vehicle. 2). A reference point connected to or assumed to be at zero potential with respect to the earth. 3). Lowest possible voltage potential in a circuit.

ground effect

Glossary “ground effect” Definition:
The reduced air pressure under a vehicle that allows the normal pressure above the vehicle to push the vehicle downward, providing a better grip on the road surface.