In an incandescent lamp, it is called a filament. It is usually made out of Tungsten. The resistance in the filament causes it to heat up, and then glow.
In a neon lamp it is plasma, which is an ionized gas. In a fluorescent bulb Mercury vapor is ionized to produce UV radiation, that hits the phosphor coating on the outside of the bulb and that glows.
As the name implies, support wires support the filament wire in the bulb, The filament, of course is the wire that glows white hot, giving out light
A glass sphere containing a metal element that glows when electricity is applied.
It has components that are arranged end to end in order to produce light.
Input to light bulb is Electricity and output is light.
Thomas Jefferson did not invent the light bulb. The light bulb was invented by Thomas Edison in 1879 in New Jersey.
the filament
yes, there is a gas in a light bulb you energise it and it glows.
An incandescent bulb.
It's the small coil of very fine tungsten wire that glows white hot.
the actual filament itself in a light bulb has the most resistance,this is why it glows and produces light,the rest of the bulb is sufficiently engineered to carry the voltage and current applied to it without producing too much heat.
In an old-fashioned light bulb, the part that emits light is a resistance. When current flows through it, it heats up so much that it glows - it emits light.Due to their lousy efficiency, these light bulbs should be discarded, in favor of fluorescent light bulbs or LED light bulbs.In an old-fashioned light bulb, the part that emits light is a resistance. When current flows through it, it heats up so much that it glows - it emits light.Due to their lousy efficiency, these light bulbs should be discarded, in favor of fluorescent light bulbs or LED light bulbs.In an old-fashioned light bulb, the part that emits light is a resistance. When current flows through it, it heats up so much that it glows - it emits light.Due to their lousy efficiency, these light bulbs should be discarded, in favor of fluorescent light bulbs or LED light bulbs.In an old-fashioned light bulb, the part that emits light is a resistance. When current flows through it, it heats up so much that it glows - it emits light.Due to their lousy efficiency, these light bulbs should be discarded, in favor of fluorescent light bulbs or LED light bulbs.
it is plasma , gas and liquid
Yes, a light bulb is a source of light. When current is going through the filament the resistance generates enough heat that the filament glows, producing light.
fluorescent bulbs have mercury in them. There are heaters at the ends of the bulb that vaporizes the mercury to allow the light to be produced ( the fluorescence on the inside of the bulb is what actually glows). If the bulb is cold you do not get the ionization of the mercury to cause the fluorescent powder inside the bulb to glow, or it just glows a small amount.
It heats the filament (which glows and so generates electromagnetic energy).
The bulb glows continuously probably, because the circuit it is installed in, is in the closed position.
A light bulb can be part of a circuit.