The ratio of ampere-hour efficiency to watt-hour efficiency of a lead-acid cell is____________?
Correct answer: B. always greater than one
- A. just one
- B. always greater than one
- C. always less than one
- D. none of the above
Explanation
Watt-hour efficiency is lower than ampere-hour efficiency because charging and discharging involve voltage losses. Therefore, their ratio is greater than one.
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