why is tungsten used for making bulb filaments of incandescent lamps?

name any two electric devic based on heating effect of electric current.

Tungsten has the highest melting point of all the metals. It does not melt even while it is glowing for long hours. This is the reason why it is used to make bulb filaments.

2 devices based on heating effect of electric current:

1) Iron (Press)

2) Immersion Heaters