Understanding Electric Cells

The video tutorial explains how an electric cell converts chemical energy into electrical energy. It describes the components of a dry cell, including ammonium chloride paste, zinc container, manganese dioxide, and carbon rod. The video details the chemical reactions that occur within the cell, leading to the flow of electric current from one terminal to another, enabling devices like bulbs to glow when connected.

What is the primary function of an electric cell?

• To convert electrical energy into chemical energy

• To generate mechanical energy

• To convert chemical energy into electrical energy

• To store electrical energy

Which component acts as the positive terminal in a dry electric cell?

• Zinc container

• Carbon rod with a metal cap

• Ammonium chloride paste

• Manganese dioxide

What is the role of the zinc container in a dry electric cell?

• Holds the ammonium chloride paste

• Conducts electricity to the bulb

• Acts as the negative terminal

• Acts as the positive terminal

What happens when the tip of the metal cap and the base of the zinc can are connected by a wire?

• The cell stops working

• The bulb glows

• The chemical reaction stops

• The cell discharges completely

Which two chemicals are involved in the reaction inside a dry electric cell?

• Carbon and manganese dioxide

• Zinc and ammonium chloride

• Ammonium chloride and manganese dioxide

• Zinc and carbon