What causes a light bulb to stop giving light?

Answer 1

Tungsten, although a metal that will heat up if you pass a current through it, is not the only metal where this will happen. It happens with them all. However, tungsten has a high melting point, so it will not melt at the temperatures to which it has to be heated to give off light.

Answer 2

Because it was designed to do so. Different light-bulbs use different technologies; the easiest to understand is the inefficient incandescent light-bulb: a thin wire is heated until it glows. In a fluorescent light-bulb, atoms in a gas are excited with electricity, meaning that their electrons move to higher energy levels. When they fall back, they give off light.

Answer 3

Well, the filament of an incandescent light bulb is what emits light. This is achieved by taking a thread of tungsten (the "filament") and suspending it in either a vacuum or an inert gas. This is done to prevent the tungsten from combustion when it heats up. The filament then has an electric charge passed through it heating the filament and causing it to emit light photons. The reason this happens is that when electrons (electricity) flow across the tungsten atom they collide with the electron of the tungsten atom causing the electrons to move to a higher energy level temporarily. The electron then emits a light photon expending energy and moving it back to its original energy level where the process starts all over again.

Answer 4

It produce light as you I see it but in essence it emits photon that our eyes can detect and process as light. That occurs when metal is heated to hi degrees of temperature and the bulb being in in a vacuum make it easily to glow since there is practically no way for the heat to dissipate

Answer 5

A light bulb can stop giving light due to a burned-out filament, loose electrical connections, or a faulty socket. Over time, the filament inside the bulb can degrade and eventually break, causing the bulb to stop glowing.

Answer 6

light bulbs have metal contacts that connect to an electrical circuit and a filament. power lights up the filament in the bulb .

Answer 7

The difference of potential across its terminals causes a light bulb to light in a closed circuit.

Answer 8

Two possibilities: the light bulb is broken or there is no electricity getting to the light bulb

Answer 9

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