Question

explain why tungsten is used for making the filaments of electric bulbs .

Answer 1

tungsten is used to make filaments of electric bulb as they have high resistivity, high melting point and do not oxidise readily at high temperatures

Answer 2

Explanation:

Tungsten is used for making the filaments of electric bulbs :

• The melting point of Tungsten is high. It is approx 3380 degrees Celsius.
• It is enclosed inside a electric bulb. It provide a envelope. Due to its very high melting point, the tungsten filament can be kept white hot without melting away.
• It is very flexible material
• Its evaporation rate is low even at high temperature.

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Explain why tungsten is used for making the filaments of electric bulbs.

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