The watt-hour efficiency of a lead-acid cell varies between
A. 25 to 35%
B. 40 to 60%
C. 70 to 80%
D. 90 to 95%
Answer: Option C
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A. charged state
B. discharged state
C. both (A) and (B)
D. active state
During charging the specific gravity of the electrolyte of a lead-acid battery
A. increases
B. decreases
C. remains the same
D. becomes zero
While preparing electrolyte for a lead-acid battery
A. water is poured into acid
B. acid is poured into water
C. anyone of the two can be added to other chemical
D. none of the above
The ratio of ampere-hour efficiency to watt-hour efficiency of a lead-acid cell is
A. just one
B. always greater than one
C. always less than one
D. none of the above
Its less than Amp-Hour efficiency.