Physics
Grade-9
Easy
Question
Which of the following is used as an anode in a dry cell?
- Zinc
- Graphite
- Mercury oxide
- Nickel
Hint:
Due to the porous zinc casing caused by the conversion of zinc to zinc chloride at the anode, dry cells have a very short lifespan.
The correct answer is: Zinc
Zinc is used as an anode in dry cells.
- A zinc-carbon battery is an example of a dry primary cell.
- They are single-use batteries that give a constant energy flow of comparatively high voltage.
- The zinc is used as an anode in these cells.
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