Electrolysis and Storage Batteries Petroleum jelly is applied to the electrical connections to the lead-acid battery prevent local heating prevent corrosion reduce path resistance prevent short-circuiting prevent local heating prevent corrosion reduce path resistance prevent short-circuiting ANSWER DOWNLOAD EXAMIANS APP
Electrolysis and Storage Batteries The ampere-hour efficiency of a leadacid cell is normally between 80 to 85% 90 to 95% 20 to 35% 70 to 75% 80 to 85% 90 to 95% 20 to 35% 70 to 75% ANSWER DOWNLOAD EXAMIANS APP
Electrolysis and Storage Batteries When two batteries are connected in parallel, it should be ensured that they have same ampere-hour capacity they have same make they have same e.m.f. they have identical internal resistance they have same ampere-hour capacity they have same make they have same e.m.f. they have identical internal resistance ANSWER DOWNLOAD EXAMIANS APP
Electrolysis and Storage Batteries Which of the following is incorrect? A carbon-zinc cell has unlimited shelf life A primary cell has an irreversible chemical reaction A lead-acid cell can be recharged A storage cell has a reversible chemical reaction A carbon-zinc cell has unlimited shelf life A primary cell has an irreversible chemical reaction A lead-acid cell can be recharged A storage cell has a reversible chemical reaction ANSWER DOWNLOAD EXAMIANS APP
Electrolysis and Storage Batteries When the specific gravity of the electrolyte of a lead-acid cell is reduced to 1.1 to 1.15 the cell is in charged state discharged state active state none of the listed here charged state discharged state active state none of the listed here ANSWER DOWNLOAD EXAMIANS APP
Electrolysis and Storage Batteries Which of the following primary cells has the highest voltage ? Carbon-zinc Mercury Manganese-alkaline Lithium Carbon-zinc Mercury Manganese-alkaline Lithium ANSWER DOWNLOAD EXAMIANS APP
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