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Questions and Answers
What is the method by which light is emitted in an incandescent lamp?
What is the method by which light is emitted in an incandescent lamp?
Light is emitted by electrically heating a tungsten filament until it is reddish-white hot.
What causes the darkening of the glass in an incandescent lamp?
What causes the darkening of the glass in an incandescent lamp?
The tungsten filament evaporates and condenses on the inside of the bulb, causing the darkening of the glass.
What happens to the filament in an incandescent lamp as the current increases?
What happens to the filament in an incandescent lamp as the current increases?
The filament gets hotter and the light gets whiter (higher color temperature).
At what temperature does Tungsten have a melting point?
At what temperature does Tungsten have a melting point?
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How does an incandescent lamp eventually wear out?
How does an incandescent lamp eventually wear out?
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What is the operating temperature of the Tungsten filament in a typical incandescent light bulb?
What is the operating temperature of the Tungsten filament in a typical incandescent light bulb?
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Explain the process by which an incandescent lamp emits light.
Explain the process by which an incandescent lamp emits light.
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What causes the eventual wearing out of incandescent lamps?
What causes the eventual wearing out of incandescent lamps?
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What is the melting point of Tungsten?
What is the melting point of Tungsten?
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In what department is Dr. Saleh Al-Saadi affiliated at Sultan Qaboos University?
In what department is Dr. Saleh Al-Saadi affiliated at Sultan Qaboos University?
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Study Notes
Incandescent Lamp
- Light is emitted in an incandescent lamp through the process of incandescence, where an electric current heats the filament until it glows.
- The darkening of the glass in an incandescent lamp is caused by the evaporation of the tungsten filament, which deposits on the inside of the glass bulb.
- As the current increases, the filament in an incandescent lamp heats up, increasing its temperature.
- Tungsten has a melting point of approximately 3422°C.
- Incandescent lamps eventually wear out due to the evaporation of the tungsten filament, which leads to its breakage.
- The operating temperature of the Tungsten filament in a typical incandescent light bulb is approximately 2500°C.
- The process by which an incandescent lamp emits light involves the filament being heated by an electric current, causing it to incandesce and produce light.
- The eventual wearing out of incandescent lamps is caused by the continuous evaporation of the tungsten filament, leading to its breakage.
- The melting point of Tungsten is approximately 3422°C.
Unrelated Information
- Dr. Saleh Al-Saadi is affiliated with the Department of ( unknown ) at Sultan Qaboos University.
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Description
Test your knowledge of electric lighting in building illumination with this quiz. Topics include incandescent lamps and their application in architectural engineering. Perfect for students of civil and architectural engineering.
