Electrolysis and Storage Batteries During charging the specific gravity of the electrolyte of a lead-acid battery increases remains the same decreases none of the listed here increases remains the same decreases none of the listed here ANSWER DOWNLOAD EXAMIANS APP
Electrolysis and Storage Batteries Life of the Edison cell is at least eight years ten years seven years five years eight years ten years seven years five years ANSWER DOWNLOAD EXAMIANS APP
Electrolysis and Storage Batteries Hydrogen evolved during charging produces explosive mixture when it is more than 5 % 6 % 10 % 8 % 5 % 6 % 10 % 8 % ANSWER DOWNLOAD EXAMIANS APP
Electrolysis and Storage Batteries The watt-hour efficiency of a lead-acid cell varies between 40 to 60% 25 to 35% 70 to 80% 90 to 95% 40 to 60% 25 to 35% 70 to 80% 90 to 95% ANSWER DOWNLOAD EXAMIANS APP
Electrolysis and Storage Batteries The active material of the positive plates of silver-zinc batteries is zinc powder lead oxide lead silver oxide zinc powder lead oxide lead silver oxide ANSWER DOWNLOAD EXAMIANS APP
Electrolysis and Storage Batteries Lead-acid cell has a life of nearly charges and discharges 1250 700 500 1000 1250 700 500 1000 ANSWER DOWNLOAD EXAMIANS APP