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Why is the filament of a bulb made of tungsten? | StemPy Lab
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Why is the filament of a bulb made of tungsten?
Physics
Easy
High School (9–10)
Electricity & Magnetism › Current Electricity
Created by
StemPy Lab
Why is the filament of a bulb made of tungsten?
Tungsten has a very high melting point, so it can glow white hot
Tungsten has a very low resistance
Tungsten does not conduct heat
Tungsten is the cheapest metal
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A bulb is marked 220 V, 60 W. What is the resistance of its filament when lit? →
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