To support tungsten filament in electric bulb, the steel used is

To support tungsten filament in electric bulbs, which of the following metals in used -

Tungsten is used in electric bulbs because

The filament of an electric bulb is made of

What is the nature of materials used to make the 'filament' of an electric bulb and the 'fuse wire' used in electric fuse ? Compare them.

The tungsten filaments of two electric bulbs are of the same length. If one of them gives 25 W power and the other 60 W power, then

The tungsten filaments of two electric bulbs are of the same length. If one of them gives 25 W power and the other 60 W power, then