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When a wire is bent back and forth it becomes hot why?
When a wire is bent back and forth, it causes deformation in the metal structure, leading to an increase in resistance. This increased resistance results in heat being generated as electrical current flows through the wire. With repeated bending, the accumulated heat can cause the wire to become hot.
What is the purpose of inserting an iron wire into the different cones of the flames?
Inserting an iron wire into the different cones of flames in a bunsen burner helps to conduct heat from the flame to the wire, allowing for easy bending or shaping of the wire. This technique is commonly used in a laboratory setting to create shapes or loops in the wire for various experiments or procedures.
What is the thin coil of wire inside a light bulb called?
If you are talking about an incandescent light bulb then its called a filament. It is thin so that it has a high level of resistance. Current going through the filament causes it to heat up and give off EM radiation in the spectrum of visible light.
Can you reuse electrical wire?
It is generally not recommended to reuse electrical wire because it can weaken over time from heat, bending, and exposure to environmental elements. It can be difficult to determine the integrity of the wire once it has been installed and used, so it is safer to use new wire for electrical projects.
What is the thin wire inside a bulb?
It's called a filament wire and is usually made out of Tungsten. It has the special properties that it can be heated white hot (in a protective atmosphere9 w/o burning up. When heated that way it give of plenty of heat and quite a lot of useful light as well.
Why does a wire becomes hot when it is bent back and forth?
When a wire is bent back and forth, the continuous bending causes internal friction between the atoms of the wire, which generates heat due to the energy released from the bending motion. This phenomenon is known as mechanical hysteresis, where the repeated bending and unbending of the wire causes it to heat up.
How can wire be hardened using heat?
Wire can be hardened using heat through a process called heat treatment. By heating the wire to a specific temperature and then cooling it quickly, the structure of the wire changes, making it stronger and more resistant to bending or breaking.
How can I harden wire effectively?
To harden wire effectively, you can heat it to a high temperature and then cool it quickly, a process known as quenching. This will make the wire stronger and more resistant to bending or deformation.
When electricity passes through the thin wire in a lightbulbit is changed to what?
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.
What do you call the wire inside a light bulb?
The part of the wire that actually produces all the heat and light is the "filament".
What is the job of a bulb in a wire?
A light ulb converts electrical current to heat (and light).
Is a bending a metal wire a physical change?
It's a physical change, because bending a wire doesn't affect the chemical makeup of it.
Why does the filament of a light give out heat and light?
Excitation and collapse of the electron energy shells give off photons, and the amount of power needed to stimulate this process heats up the wire (usually tungsten these days), and the heat is radiated through the glass. A good article about filaments is in the first link below.
Why does a hard wire break while bending it in the opposite direction?
it is not used to bending in that direction
What is the history of wire bending?
to bend someting
What is wire bending?
a flexible piece of metal
Why tungstan light bulb generates so much heat?
The heating of the wire causes light to be emitted.
