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How much elctricity can an automotive alternator produce compared to how much electricity it takes to drive it.?
Wiki User
∙ 15y ago
it will take more electricity to run the alternator than the alternator can produce to drive the motor. the inefficiency is caused by waste heat, friction in the bearings and drive connection. it a law of thermodynamics that a closed system can't produce more energy than it consumes. the difference (how much electricity) depends on the overall design, and whether or not it exists in a weightless vacuum at near absolute zero temperature. Both conditions can increase efficiency. some other conditions might be whether the mechanism was designed by cavemen, or hypothetical CAD software that balances a thousand variables in a split second to maximize efficiency of the materials employed. if near 100% efficency is achieved, it would still be a useless machine because it could only run itself.
Wiki User
∙ 15y ago
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