Question
What is a cell? Explain the types of cells.
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Answer
A device that converts chemical energy into electrical energy is called a cell. Cells are classified, in two types. They are-
- Primary cells,
- Secondary cells.
- They can not be recharged.
- They can be used only once.
- They are small in size.
- Eg. Cells used in clocks, watches, and toys, etc.
- A cell that can be recharged many times is called secondary cells.
- Depending upon usage size may vary.
- Eg. Secondary cells are used in mobile phones, laptops, emergency lamps, and vehicle batteries.
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