Structure of Electric Bulb:

An electric bulb is a common device used for producing light by the flow of electric current. It consists of several components that work together to convert electrical energy into light energy. The main parts of an electric bulb include:

1. Base: The base of the bulb is usually made of metal and serves as a connector to the electrical circuit. It is designed to fit into a bulb socket and provide a secure connection.

2. Cap: The cap is located at the top of the bulb and is used to hold the glass envelope in place. It also provides a connection point for the electrical contacts.

3. Glass Envelope: The glass envelope is a transparent enclosure that surrounds the filament and protects it from external factors. It is made of heat-resistant glass to withstand high temperatures.

4. Filament: The filament is the heart of the bulb and is responsible for producing light. It is typically made of tungsten wire and is coiled or wound in a spiral shape. When an electric current passes through the filament, it heats up and emits light due to its high resistance.

5. Support Wires: Support wires are used to hold the filament in place within the bulb. They are usually made of a heat-resistant material and are attached to the stem of the bulb.

6. Stem: The stem is a glass or metal rod that connects the base to the bulb's cap. It provides a path for the electrical current to flow into the filament.

Structure of Cell:

A cell, also known as a battery, is an electrochemical device that converts chemical energy into electrical energy. It consists of several components working together to generate a flow of electrons. The main parts of a cell include:

1. Anode: The anode is the positive terminal of the cell where the oxidation of the chemical reaction occurs. It is typically made of a metal or a conductive material.

2. Cathode: The cathode is the negative terminal of the cell where the reduction of the chemical reaction occurs. It is usually made of a different metal or conductive material than the anode.

3. Electrolyte: The electrolyte is a liquid or gel substance that allows the flow of ions between the anode and cathode. It contains the chemicals necessary for the electrochemical reaction to take place.

4. Separator: The separator is a porous material placed between the anode and cathode to prevent direct contact and short circuits. It allows the movement of ions while preventing the mixing of the chemicals.

5. Collector: The collector is a conductive material that connects the anode and cathode to the external circuit. It allows the flow of electrons from the cell to power devices.

6. Container: The container holds all the components of the cell together and provides protection. It is usually made of a non-conductive material such as plastic.

Overall, both the electric bulb and cell have specific structures that enable them to perform their respective functions efficiently. Understanding their structures helps in comprehending their working principles and applications.