What makes a bulb light up?
A flow of electric current going through the wire.
A tiny light bulb with a reflector is lit up with a battery. The switch connects the electric circuit; the power flows through the wire and the bulb lights up.Current through resistive filament of globe produces heat and light.Well first there's these two batteries inside it, then there's a wire inside it connecting it to the light bulb. then it makes one light bulb or more light by the energy of the battery. that makes…
The part of a light bulb that is a poor conductor so that the friction causes it to light up and glow?
When an incandescent light bulb (the normal round ones that Thomas Edison invented) is placed into a "hot" circuit, (meaning there is electricity flowing through it), the electricity passes through the filament (little metal wires) on the inside. As the electricity passes through it, the wires heat up and make a chemical reaction causing light to be emitted.