Question

Material used to as filament in bulb & when filament heat up it reach a temperature over ?

gold, 1100 degree C

tungsten, 500 degree C

tungsten, 1100 degree C

brass, 500 degree C

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Answer 1

Answer:

Tungsten, 1100 degree C

Explanation:

In a "standard" 75 or 100 watt 120 volt bulb, the filament temperature is roughly 2550 degrees Celsius, or roughly 4600 degrees Fahrenheit. At high temperatures like this, the thermal radiation from the filament includes a significant amount of visible light.