Natural sources of light include our sun and other stars, where the source of energy is nuclear energy (recall that the moon does not produce light but merely reflects sunlight), lightning, where the source is electrical, and fire, where the energy source is chemical.

What produces light in a circuit?

The filament causes the electrons� moving in one general direction to have more random motion, which produces the light. In summary, the resistance due to the filament�s thinness acts to convert the electrical energy in the current into the energy of light.

What are the sources of light?

A light source is anything that makes light, whether natural and artificial. Natural light sources include the Sun and stars. Artificial light sources include lamp posts and televisions.