The headlights of a moving car require about 10 A from the
Chapter , Problem 66(choose chapter or problem)
The headlights of a moving car require about 10 A from the 12 V alternator, which is driven by the engine. Assume the alternator is 80% efficient (its output electrical power is 80% of its input mechanical power), and calculate the horsepower the engine must supply to run the lights.
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