Question

IV. Answer briefly
8. Why tungsten is used in electric bulb?

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Answer 1

Answer:

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Explanation:

Tungsten is used for making the filaments of electric bulbs because it has a very high melting point. Due to its very high melting point, the tungsten filament can be kept white hot without melting away. Also, tungsten has high flexibility and low rate of evaporation at high temperature.

Answer 2

Explanation:

Tungsten is used for making filament of an electric bulb due to the following reasons:-

• Being an alloy it has a very high melting point.
• It has very high resistivity so it does not burn easily at room temperature.
• The lamp glows at high temperatures.

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