Which of the following cell has a reversible chemical reaction ? Lead-acid Silver-oxide Mercury oxide Carbon-zinc TRUE ANSWER : ? YOUR ANSWER : ?
The body of Edison cell is made of rubber nickel plated steel aluminium bakelite TRUE ANSWER : ? YOUR ANSWER : ?
The active material of the positive plates of silver-zinc batteries is lead lead oxide zinc powder silver oxide TRUE ANSWER : ? YOUR ANSWER : ?
Life of the batteries is in the following ascending order. Edison cell, Nickel-cadmium cell, lead-acid cell Nickel-cadmium cell, Edison cell, lead-acid cell Lead-acid cell, Nickel-cadmium cell, Edison cell Lead-acid cell, Edison cell, Nickel cadmium cell TRUE ANSWER : ? YOUR ANSWER : ?
The ampere-hour efficiency of a leadacid cell is normally between 20 to 35% 80 to 85% 90 to 95% 70 to 75% TRUE ANSWER : ? YOUR ANSWER : ?
Negative plate of an Edison cell is made of copper lead silver oxide iron TRUE ANSWER : ? YOUR ANSWER : ?
The output voltage of a charger is none of the listed here higher than the battery voltage the same as the battery voltage less than the battery voltage TRUE ANSWER : ? YOUR ANSWER : ?
The charge required to liberate one gram equivalent of any substance is known as ______ constant Time Boltzman None of the listed here Faraday’s TRUE ANSWER : ? YOUR ANSWER : ?
In constant voltage charging method, the charging current from discharged to fully charged condition None of the listed here Increases Remains same Decreases TRUE ANSWER : ? YOUR ANSWER : ?
Life of the Edison cell is at least five years eight years ten years seven years TRUE ANSWER : ? YOUR ANSWER : ?