Electrolysis and Storage Batteries The watt-hour efficiency of a lead-acid cell varies between 90 to 95% 40 to 60% 70 to 80% 25 to 35% 90 to 95% 40 to 60% 70 to 80% 25 to 35% ANSWER DOWNLOAD EXAMIANS APP
Electrolysis and Storage Batteries During discharge, the active material of both the positive and negative plates is changed to PbS02 Pb Pb02 PbS04 PbS02 Pb Pb02 PbS04 ANSWER DOWNLOAD EXAMIANS APP
Electrolysis and Storage Batteries During the charging and discharging of a nickel-iron cell water is neither formed nor absorbed corrosive fumes are produced its e.m.f. remains constant nickel hydroxide remains unsplit water is neither formed nor absorbed corrosive fumes are produced its e.m.f. remains constant nickel hydroxide remains unsplit ANSWER DOWNLOAD EXAMIANS APP
Electrolysis and Storage Batteries Following will happen if the specific gravity of electrolyte becomes more than 1.23. All of the listed here Loss of life Corrosion of the grids of the plate Loss of capacity All of the listed here Loss of life Corrosion of the grids of the plate Loss of capacity ANSWER DOWNLOAD EXAMIANS APP
Electrolysis and Storage Batteries Internal resistance of a cell is reduced by using vent plug to permit gas formed during discharge putting plates very close together increasing the plate area all of the listed here using vent plug to permit gas formed during discharge putting plates very close together increasing the plate area all of the listed here ANSWER DOWNLOAD EXAMIANS APP
Electrolysis and Storage Batteries The internal resistance of an alkali cell is nearly _____ times that of the lead-acid cell. 5 4 2 3 5 4 2 3 ANSWER DOWNLOAD EXAMIANS APP
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