Weston standard cell at 20°C has voltage of _______ volts

Related Mcqs:

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...

Those substances of the cell which take active part in chemical combination and hence produce electricity during charging or discharging are known as________materials

A. passive B. active C. redundant D. inert...

Internal short circuits are caused by___________?

A. breakdown of one or more separators B. excess accumulation of sediment at the bottom of the cell C. both (A) and (B) D. none of the above...

On overcharging a battery____________?

A. it will bring about chemical change in active materials B. it will increase the capacity of the battery C. it will raise the specific gravity of the electrolyte D. none of the above will occur...

For a cell to work, which of the following condition(s) become necessary ___________?

A. Two electrodes of different meta’s should be inserted in the electrolyte, not touching each other B. Electrolyte must chemically react with one of the electrodes C. Electrolyte liquid or paste should be conducting D. All above three conditions are necessary...