An electric car has a battery that can hold 17 kWh of energy. If the battery is

Question

An electric car has a battery that can hold 17 kWh of energy. If the battery is designed to operate at 340 V, how many coulombs of charge would need to leave the battery at 340 V and return at 0 V to equal the stored energ of the battery? Assume that the voltages are constant. An electric car has a battery that can hold 17 kWh of energy. If the battery is designed to operate at 340 V, how many coulombs of charge would need to leave the battery at 340 V and return at 0 V to equal the stored energ of the battery? Assume that the voltages are constant.

Explanation / Answer

17 kWh= 17 * 1000 * 3600 = 61200000 W

Q* (340-0) = 61200000

Q= 61200000/430 = 180000 C

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