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Question

Mention two reasons on why tungsten is used for making filament of the electric bulb.

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Solution

Tungsten is used for making filament for the electric bulb, because of the following reasons-

  1. Tungsten is a metal that has a high melting point.
  2. Due to high resistivity, it does not burn at room temperature but the bulb glows at high temperatures.

Hence, Tungsten is used in bulbs due to its high melting point and resistivity.


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