The storage battery generally used in electric power station is__________?
The storage battery generally used in electric power station is__________? A. nickel-cadmium battery B. zinc-carbon batteryC. lead-acid battery D. none of the above
The storage battery generally used in electric power station is__________? A. nickel-cadmium battery B. zinc-carbon batteryC. lead-acid battery D. none of the above
During the charging of a lead-acid cell__________? A. its voltage increases B. it gives out energy C. its cathode becomes dark chocolate brown in colour D. specific gravity of H2SO4 decreases
The active materials on the positive and negative plates of a fully charged lead-acid battery are_______? A. lead and lead peroxide B. lead sulphate and leadC. lead peroxide and lead D. none of the above
The capacity of a lead-acid cell does not depend on its___________? A. temperatureB. rate of charge C. rate of discharge D. quantity of active material
The charge required to liberate one gram equivalent of any substance is known as _________ constant A. timeB. Faraday’s C. Boltzman
When a lead-acid battery is in fully charged condition, the color of its positive plate is__________? A. dark grey B. brownC. dark brown D. none of above
The mass of an ion liberated at an electrode is directly proportional to the quantity of electricity. The statement is associated with____________? A. Newton’s law B. Faraday’s law of electromagneticC. Faraday’s law of electrolysis D. Gauss’s law
During charging the specific gravity of the electrolyte of a lead-acid battery A. increases B. decreases C. remains the same D. becomes zero
The active materials of a nickel-iron battery are___________? A. nickel hydroxide B. powdered iron and its oxide C. 21% solution of KOHD. all of the above