alleryStart learning →A lead acid car battery reaches 12 volts because it connects in series:
ATwo six-volt cells
BTwelve one-volt cells
CThree four-volt cells
DSix two-volt cells
Answer & Solution
Correct answer: D. Six two-volt cells
1. Cells in series add their voltages.
2. Each lead acid cell produces 2 volts.
3. So six cells are connected in series to produce a 12 volt car battery.
4. Lead acid batteries are heavy and hold a caustic sulfuric acid electrolyte, but remain popular for their high current density.
_Source: OpenStax Chemistry 2e (CC BY 4.0), Ch 17 'Electrochemistry', sections 17.1-17.7_
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