Question

Why is dry cell very convenient to use?​

Answer 1

A dry cell is a portable electric battery that is used mainly in homes for flashlights, radios, remote controllers, and many other devices.

Explanation:

Dry cell:

• A dry cell is a portable battery. It has its electrolyte in a paste form.
• A common type of dry cell is a zinc-carbon dry cell. It uses ammonium chloride electrolyte in paste form. This avoids spillage or leakage of electrolytes from the cell.

• It can also be oriented in any direction, so this can be considered as one of the most important advantages of a dry cell.

• Dry cells have high energy density or power stored to weight ratio.

• So they are of compact size which makes them easy to carry around which makes them one of the most common types of batteries found everywhere.

Types of Dry cells:

A dry cell battery converts chemical energy into electrical energy. There are two types of dry cells:

1. Primary

2. Secondary

• Primary cells are those which cannot be recharged.

• Secondary cells are those which can be recharged and reused.

Examples of primary dry cells are zinc-carbon cell, alkaline cell, lithium cell, mercury cell, silver oxide cell.

Examples of secondary dry cells are nickel-cadmium cell, lithium-ion cell, nickel-metal hydride cell.

Advantages:

• Dry cells are cheap compared to other cells.

• The comparatively lower hazardous effect on the environment.

• Easy availability of dry cells.