Question

Explain the structure and working of an electric bulb with the help of labelled diagram

Answer 1

Answer:

Explanation:

The wire inside the glass case is made of tungsten. It's either coiled or straight. It serves as a filament of the bulb. The electricity passes through the filament. As a result, its get heated up and gives out the light.

Answer 2

WORKING OF ELECTRIC FILAMENT BULB:

• The electric bulb was invented by THOMAS ALVA EDISON.

• The bulb is basically an electrical device with two terminals (attached to the circuit) and a tungsten filament inside a chamber containing inert gases.

• Now, whenever the circuit is closed, current passes through the circuit and flows through the tungsten filament.

• Tungsten has a high melting point of around 3000 K. Hence it can generate a lot of heat energy without melting.

• This heat energy is released in the form of light energy which helps us to light up the room.

• Also, the chamber is devoid of any oxygen and hence prevents the tungsten filament from burning out.

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