30[A]Why is tungsten used almost exclusively for filament of electric lamps
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Tungsten has a high melting point of 3695K, lowest vapour pressure and great tensile strength out of all the metals. Since it can reach high temperature before melting, it is used for light bulb filaments. ... The metal tungsten is used for the filaments in incandescent bulbs.
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because of high melting point and and don't get oxidised
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