Why does not the electric filament in an electric bulb burn up?

Q: Why does not the electric filament in an electric bulb burn up?

Ans:- the electric filament in an electric bulb burn up due to the two reasons that is high melting point of tungsten and absence of oxygen.

Firstly, because it is made of tungsten which has a very high melting point (34100) whereas the temperature of the filament required to glow is only 27000 C . Secondly, oxygen is absent since the bulb is filled with an inert gas which does not help in burning. Continue reading “Why does not the electric filament in an electric bulb burn up?”