Question

Explain why the tungsten filament of bulb is thin and twisted

Answer 1

Answer:

Explanation:

In order to get sufficient resistance for 120V or 240V, the filament needs to be very long and thin. ... Also, this exposes less of the filament to the inert gas in the bulb, so there is less convection loss of heat. In some bulbs, the coiled filament is coiled again. So it's a coiled coil.

Answer 2

In order to get sufficient resistance for 120V or 240V, the filament needs to be very long and thin. ... Also, this exposes less of the filament to the inert gas in the bulb, so there is less convection loss of heat. In some bulbs, the coiled filament is coiled again. So it's a coiled coil.