Electrolysis and Storage Batteries A constant-voltage generator has minimum efficiency high internal resistance low internal resistance minimum current capacity minimum efficiency high internal resistance low internal resistance minimum current capacity ANSWER DOWNLOAD EXAMIANS APP
Electrolysis and Storage Batteries During the charging of a lead-acid cell it gives out energy its voltage increases its cathode becomes dark chocolate brown in colour specific gravity of H₂SO₄ decreases it gives out energy its voltage increases its cathode becomes dark chocolate brown in colour specific gravity of H₂SO₄ decreases 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 load resistance equals the generator resistance which of the following will be maximum ? Voltage across the load resistance Power in the load resistance Efficiency of the circuit Current Voltage across the load resistance Power in the load resistance Efficiency of the circuit Current ANSWER DOWNLOAD EXAMIANS APP
Electrolysis and Storage Batteries Which of the following factors adversely affects the capacity of the leadacid battery ? Temperature of surroundings Specific gravity of electrolyte Rate of discharge All of these Temperature of surroundings Specific gravity of electrolyte Rate of discharge All of these ANSWER DOWNLOAD EXAMIANS APP
Electrolysis and Storage Batteries As compared to a lead-acid cell, the efficiency of a nickel-iron cell is less due to its lower e.m.f. compactness small quantity of electrolyte used higher internal resistance lower e.m.f. compactness small quantity of electrolyte used higher internal resistance ANSWER DOWNLOAD EXAMIANS APP
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