Question

The filament in the torch bulb
is made of tungsten which is a metal.
Describe the nature and direction of
the current in the filament?​

Answer 1

Due to tungsten light bulbs heat up a lot and produce whiter light.

Explanation:

• Since tungsten has a very high melting point unlike other elements this allows the light bulb to work at high efficacy.

• The filament of tungsten glows and generates light.

• This converts electrical energy into light.

• The electrons in a zipping motion move along the filament.  

• They bump into the atoms that are part of the filament. Hence the current flows from the wires straight to the filament.