Dry cell is modification of____________?
Dry cell is modification of____________?
A. Deniell cell
B. Leclanche cell
C. Lead-acid cell
D. Edison cell
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Charging a sulphated battery at high rate results in___________?
Charging a sulphated battery at high rate results in___________?A. boiling of electrolyte due to gassing
B. warg of plates
C. damage to separators, cell caps covers and battery case due to excessive temperature
D. all aboveThe watt-hour efficiency of a lead-acid cell varies between________?
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%Those substances of the cell which take active part in chemical combination and hence produce electricity during charging or discharging are known as________materials
Those substances of the cell which take active part in chemical combination and hence produce electricity during charging or discharging are known as________materialsA. passive
B. active
C. redundant
D. inertWhich of the following is incorrect ?
Which of the following is incorrect ?A. A storage cell has a reversible chemical reaction
B. A lead-acid cell can be recharged
C. A carbon-zinc cell has unlimited shelf life
D. A primary cell has an irreversible chemical reactionCells are connected in series in order to_____________?
Cells are connected in series in order to_____________?A. increase the voltage rating
B. increase the current rating
C. increase the life of the cells
D. none of the aboveCharging of sulfated battery produces _________ heat
Charging of sulfated battery produces _________ heatA. no
B. very little
C. less
D. more