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why is tungsten used almost excusively for filament of electric lamps

Posted by Bhoomika Grover 6 years, 3 months ago

CBSE > Class 10 > Science

3 answers

Anish Pandey 6 years, 3 months ago

Because its melting is high

1Thank You

Yogita Ingle 6 years, 3 months ago

Tungsten is used in filament of electric bulb and lamps because tungsten is a metal which has high melting point 3,422 °C and we know that electricity causes heating , therefore due to high temperature the tungsten does not melt .

0Thank You

Aadya Singh ? 6 years, 3 months ago

Because the melting point and resistivity of tungsten are very high. They don't burn easily at a high temperature.

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