Tungsten is used as a filament in lamps for several reasons:

1. High Melting Point: Tungsten has an extremely high melting point of about 3422 degrees Celsius or 6192 degrees Fahrenheit. This means it can withstand the high temperatures generated when a current is passed through it to produce light.

2. High Tensile Strength: Tungsten has one of the highest tensile strengths among metals. This allows it to be drawn into very thin, fine wires, which is necessary for the filament in a light bulb.

3. Low Vapor Pressure: Tungsten has a low vapor pressure, even at high temperatures. This means it doesn't evaporate quickly, which would otherwise lead to the filament thinning and the bulb burning out.

4. Oxidation Resistance: In a properly sealed lamp, tungsten does not oxidize, or burn, at high temperatures, which would cause the filament to break and the lamp to fail.

5. Efficiency: Tungsten filaments are highly efficient at converting electricity into light. This is because the high temperature of the filament causes it to emit a broad spectrum of light, including a significant amount of visible light.

These properties make tungsten an ideal material for use as a filament in lamps.

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Tungsten is used as a filament in lamps for several reasons:

1. High Melting Point: Tungsten has an extremely high melting point of about 3422 degrees Celsius or 6192 degrees Fahrenheit. This means it can withstand the high temperatures generated when a current is passed through it to produce light.

2. High Tensile Strength: Tungsten has one of the highest tensile strengths among metals. This allows it to be drawn into very thin, fine wires, which is necessary for the filament in a light bulb.

3. Low Vapor Pressure: Tungsten has a low vapor pressure, even at high temperatures. This means it doesn't evaporate quickly, which would otherwise lead to the filament thinning and the bulb burning out.

4. Oxidation Resistance: In a properly sealed lamp, tungsten does not oxidize, or burn, at high temperatures, which would cause the filament to break and the lamp to fail.

5. Efficiency: Tungsten filaments are highly efficient at converting electricity into light. This is because the high temperature of the filament causes it to emit a broad spectrum of light, including a significant amount of visible light.

These properties make tungsten an ideal material for use as a filament in lamps.

Knowee AI · Accepted Answer

Tungsten is used as a filament in lamps for several reasons:

1. High Melting Point: Tungsten has an extremely high melting point of about 3422 degrees Celsius or 6192 degrees Fahrenheit. This means it can withstand the high temperatures generated when a current is passed through it to produce light.

2. High Tensile Strength: Tungsten has one of the highest tensile strengths among metals. This allows it to be drawn into very thin, fine wires, which is necessary for the filament in a light bulb.

3. Low Vapor Pressure: Tungsten has a low vapor pressure, even at high temperatures. This means it doesn't evaporate quickly, which would otherwise lead to the filament thinning and the bulb burning out.

4. Oxidation Resistance: In a properly sealed lamp, tungsten does not oxidize, or burn, at high temperatures, which would cause the filament to break and the lamp to fail.

5. Efficiency: Tungsten filaments are highly efficient at converting electricity into light. This is because the high temperature of the filament causes it to emit a broad spectrum of light, including a significant amount of visible light.

These properties make tungsten an ideal material for use as a filament in lamps.

Why Tungsten is used as filament in lamps?

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