Question:
What's the diffreance between watts and volts?
Answers:
Car batteries provide 13.8 volts when fully charged (NOT 12 volts as is commonly thought). Their power output is rated in amp-hours...a typical one will be about 75 amp-hours, meaning the battery could supply one amp of current at 13.8 volts for 75 hours, and then it's dead.
Wattage is a measure of power, volts is a measure of potential (how much electrical "pressure" there is between the positive and negative sides of a circuit).
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The formula is P=IR (power = current times resistance)...so if you put 1 amp of current through a circuit with 10 ohms of resistance, you'd use P= 1 * 10 or 10 watts of power.
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about 12 volts in an average car but it varies depending on the type of the car.Which is the better car, the Hyundai Elantra or the Honda Civic?
a car battery holds 13.8 volts and watts is a measure of how much current a power device takes to operate newer cars and trucks have more then one batt or larger batterys the newest thing for cars is the 42 volt sys its new in 07 good luck to the shade tree mecanics that dont knowMore Questions & Answers ...
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