Your Personal And Comprehensive Dermatologist; Servicing The Entire Oconomowoc and Watertown, WI Areas. Dr. Neils is board certified in Internal Medicine and Dermatology and has been practicing in Wisconsin for over 30 years. He is a staff physician at Oconomowoc Memorial Hospital and Watertown Regional Medical Center.
Credit: NoDerog E+ Getty Images. In a three-prong plug, the neutral wire is connected through the right-handed prong, when one is looking at the plug with the ground prong on the bottom. The neutral prong is the wider of the two plugs. The ground wire is also connected to the ground to prevent short circuits. However, the neutral wire's purpose is to be part of the live path for electricity, rather than to act as a safety guard if something goes wrong. Sometimes, these two wires are mixed up, as the neutral wire is commonly referred to as the grounded wire.
The second wire (neutral) is the car's body, also known as the ground, which carries electricity back to the battery to complete the circuit. This is what we mean by negative ground.. Most automotive electrical systems are negative ground, which means the negative battery post is connected to the body or ground..