Electrolysis and Storage Batteries A dead storage battery can be revived by adding distilled water adding so-called battery restorer a dose of H₂SO₄ none of the listed here adding distilled water adding so-called battery restorer a dose of H₂SO₄ none of the listed here ANSWER DOWNLOAD EXAMIANS APP
Electrolysis and Storage Batteries The watt-hour efficiency of a lead-acid cell varies between 40 to 60% 90 to 95% 25 to 35% 70 to 80% 40 to 60% 90 to 95% 25 to 35% 70 to 80% ANSWER DOWNLOAD EXAMIANS APP
Electrolysis and Storage Batteries In constant-current charging method, the supply voltage from discharged to fully charged condition decreases none of the listed here remains constant increases decreases none of the listed here remains constant increases ANSWER DOWNLOAD EXAMIANS APP
Electrolysis and Storage Batteries During discharge, the active material of both the positive and negative plates is changed to Pb PbS04 PbS02 Pb02 Pb PbS04 PbS02 Pb02 ANSWER DOWNLOAD EXAMIANS APP
Electrolysis and Storage Batteries The effect of sulphation is that the internal resistance increases remains same none of the listed here decreases increases remains same none of the listed here decreases ANSWER DOWNLOAD EXAMIANS APP
Electrolysis and Storage Batteries Hydrogen evolved during charging produces explosive mixture when it is more than 5 % 6 % 8 % 10 % 5 % 6 % 8 % 10 % ANSWER DOWNLOAD EXAMIANS APP