Hi this is my home work: How many times bigger is main voltage than the voltage of car battery? is it: 240v/12v ? or do we need to convert 240v AC to DC first than divide it to 12v?
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Originally Posted by junjun44 Hi this is my home work: How many times bigger is main voltage than the voltage of car battery? is it: 240v/12v ? or do we need to convert 240v AC to DC first than divide it to 12v? You can't convert an AC voltage to a DC voltage. The concept makes no sense. On the other hand you can find the rms value of the AC voltage... -Dan
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