why is tungsten used almost exclusively for filament of incandescent lamps?
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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 .
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Because of highest melting point and lowest vapour pressure...tungsten used almost exclusively for filament of incandescent lamps...
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