Understanding Light Bulb Components

The video tutorial covers the basics of light energy, focusing on natural and artificial sources. It introduces the electric lamp, highlighting Thomas Edison as the inventor of the light bulb. The structure of the light bulb is explained, detailing the filament, glass bulb, and base. The functions of these components are discussed, including the role of argon gas in preventing filament burning. Finally, the video describes different types of lamp bases and their connections.

What is the primary natural source of light energy on Earth?

• The Moon

• Electric Lamps

• The Sun

• Fire

Which of the following is an artificial source of light?

• Stars

• Candle

• The Sun

• Moonlight

Who is credited with inventing the light bulb?

• Nikola Tesla

• Thomas Edison

• Alexander Graham Bell

• Isaac Newton

What is the primary function of the filament in a light bulb?

• To protect the bulb

• To emit light and heat

• To store energy

• To cool the bulb

Why is tungsten used for the filament in light bulbs?

• It is inexpensive

• It has a high melting point

• It is a good conductor

• It is lightweight

What is the purpose of the glass bulb in a light bulb?

• To change the color of light

• To enhance brightness

• To reduce heat

• To prevent air from reaching the filament

Why is argon gas used inside the glass bulb instead of air?

• It enhances brightness

• It prevents burning

• It is cheaper

• It is lighter than air

What is the function of the base of a light bulb?

• To emit light

• To store energy

• To connect the bulb to the electric circuit

• To change the bulb's color

Which type of lamp base has two pieces of lead for connection?

• Spiral base

• Two side nails base

• Single pin base

• Flat base

What is the main role of the copper and lead wires in a light bulb?

• To allow electric current to pass

• To store energy

• To change the bulb's color

• To emit light