CELL AND BATTERIES - Practice Mode

1) What happen to the terminal voltage of a cell if load increases?

Increases Decreases Falls to zero Remains same

Correct Answer: Decreases

2) How local action defect is prevented in voltaic cell?

By connecting cells in series By using a depolarizing agent By connecting cells in parallel By amalgamating the zinc plate

Correct Answer: By amalgamating the zinc plate

3) What does the letter Z indicate in the formula M=Z/it

Time in seconds E.C.E of electrolyte Amount of current in Amp Mass deposited in grams

Correct Answer: E.C.E of electrolyte

4) What is the Electro Chemical Equivalent (ECE) of copper?

0.329 mg / coulomb 0.329 g/ coulomb 1.1182 mg / coulomb 1.1182 g/ coulomb

Correct Answer: 0.329 mg / coulomb

5) Which is the cause for buckling defect in lead acid battery?

Overcharging or over discharging Charging with low rate for short period Formation of sediments falling from the plate Battery is kept in discharged condition for long period

Correct Answer: Overcharging or over discharging

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