Filament of an electric bulb is made up of tugsten and not any other material. why ?
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The filament is made of tungsten because the wire has low melting point and has high tensile strength out of all other metals. The metal tungsten is flexible and can sustain high temperature. The same way ceramic rope is used in thermal industry cause it can sustain high temperature.
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because of its high melting point and bad coduction of electricity and and good production of heat as it have a high resistance
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