Question

why is tungsten used almost exclusively for filament of electric lamps

Answer 1

It is the very good conductor of heat thus it helps the light to burn

Answer 2

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 .


hope this helps