Question

Q.28: Describe the construction of a dry cell.​

Answer 1

Answer:

A dry cell consists of a metal container in which a low moisture electrolyte paste covers the graphite rod or a metal electrode. Generally, the metal container will be zinc whose base acts as a negative electrode (anode) and a carbon road acts as a positive electrode (cathode).

Types of dry cells-

Primary cell

1. Zinc-Carbon cell

2. Alkaline battery

3. Mercury cell

4. Silver oxide cell

Secondary cell

1. Nickel-cadmium cell (NiCd cell)

2. Lithium-ion cell

3. Nickel-metal hydride cell

Advantages of a dry cell

They are easy to use in a simple electronic device.

There is no worry about linkage in the dry cell.

Dry cells are safe during transportation.

They are small and lightweight.

Answer 2

Answer:

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