the core
The part of the wire that actually produces all the heat and light is the "filament".
Infra red part of light is responsible for heat.
When electricity passes through the thin wire in a lightbulb, it is changed to light and heat energy. The electrical energy produces heat in the wire, causing it to glow and produce light.
Liver
filament
Sun is a gigantic gas ball that consist of hydrogen regulary converting to hellium, therefore produces light and heat. All parts is equally hot and lightned. For common sense..if you can feel extreme heat from sun to earth, there is no way one part is going to be little cooler than other within sun because hot part will have its effect on nearby area. (if hydrogen is not equally distributed within sun but it is equally distributed).
The filament of a light bulb is the part that produces light when an electric current passes through it. It is typically made from tungsten due to its high melting point and ability to withstand the heat generated.
The core of the sun is where nuclear fusion occurs, producing the majority of the sun's heat and light. This fusion process converts hydrogen into helium, releasing energy in the form of heat and light.
A filiment in a light bulb is the part that produces the light.
your head
It means that only part of the electrical energy used up gets converted into useful light; another part of the energy gets converted into other types of energy, mainly heat. If this energy waste could be avoided (so that the light bulb produces only light, and no heat), then you would get the same result at a lower cost.
The core of the sun produces the majority of heat and light through nuclear fusion reactions that convert hydrogen into helium. This energy then radiates outward through the sun's layers, eventually reaching the surface and being released as sunlight.