ChatterBank0 min ago
positive earth in car wiring
How does a car with poitive earth work?
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For more on marking an answer as the "Best Answer", please visit our FAQ.take a dc light bulb , connect the positive to the body , the negative to the pole ; like that
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..:: Positive Earth Drivers Club ::..
don't believe me?
http://www.pedc.org/
..:: Positive Earth Drivers Club ::..
Moder cars are negative earthed because it was found that cars wired positive earth [ground] tend to suffer from chassis and body corrosion more readily than those wired negative earth. The reason is perfectly simple, since metallic corrosion is an electrolytic process where the anode or positive electrode corrodes sacrificially to the cathode. The phenomenon is made use of in the "Cathodic Protection" of steel-hulled ships and underground pipelines where a less 'noble' or more electro-negative metal such as magnesium or aluminum is allowed to corrode sacrificially to the steel thus inhibiting its corrosion
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