Ground (earth)
Modern cars have a "negative earth" electrical system. In this case the negative terminal of the battery is bonded to the vehicle's chassis (the metallic body work) and the positive terminal provides the "live" wire to the various systems. However, some older cars were built with a "positive earth" electrical system, in this case the positive terminal of the battery is bonded to the chassis and the negative terminal for the live.
Read more about this topic: Electrical Polarity
Famous quotes containing the word ground:
“We used to think that revolutions are the cause of change. Actually it is the other way around: change prepares the ground for revolution.”
—Eric Hoffer (1902–1983)
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