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Iron that has some carbon is cooled very rapidly from about 1300 degrees F. to close to room temperature . The carbon atoms get in the way of the iron atoms as they form a lattice work in the cooling steel. that makes the steel very hard but very brittle. The the next step is to reheat the iron to about 440 degrees F. that way you get a reasonably hard iron that won't break when you need to use it.
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Why is soft material is preferred to make electomagnet than hard?
I assume you mean "soft iron" ... so that it quickly loses its magnetism when the current flow stops.
How many is retentivity of soft iron?
Retentivity, or magnetic retentivity, refers to the ability of a material to retain magnetization after an external magnetic field is removed. For soft iron, the retentivity is relatively low compared to hard magnetic materials; it typically measures in the range of a few milliTesla. This property makes soft iron ideal for applications like electromagnets and transformers, where rapid magnetization and demagnetization are required.
Why is soft iron named as soft iron?
Soft iron does not retain magnetism. It can be magnetised and demagnetised quickly and easily. Used as a core for transformers. 'Soft' probably relates to it's submission, when exposed to magnetism. It 'gives in' without too much fuss.
How would you distinguish between soft iron a piece of copper and a magnet?
Soft iron will not have any magnetic properties unless it is magnetized, while a piece of copper will not be attracted to a magnet at all. A magnet will attract both soft iron and copper, but the attraction will be stronger for the soft iron due to its ability to become magnetized.
Can electro magnet magnetize and demagnetize soft iron?
Yes, they can magnetise soft iron. Not sure about demagnetising though. I assume that if more than one or two were placed around the soft magnet, it could demagnetise it.. However, the soft iron would need to be 'hit' so that the poles in the iron can allign with the magnetic fields due to the electro magnet.
What is soft iron hardness?
Pure iron is relatively soft and easily worked (malleable). Iron heated to high temperatures and alloyed with carbon and other elements is called steel, which can be made extremely hard and durable, but not easily worked.
Is iron hard or soft?
it depends on what state it's in(:
How does soft iorn is different from hard iron?
That depends on what you mean - soft iron is usually the name given to iron that is easily magnetised and demagnetised. In which case it is usually very pure. Mecahnically soft and hard irons have different crystal structures and trace impurities, although iron is more correctly known as steel when it is anything but 100% pure iron.
Is zinc soft?
Zinc is considered a hard metal; its hardness is similar to that of Iron.
How is a soft ball made and what is it made of?
soft balls are made when you get kicked in the balls hard and made with sperm
Tire is soft rubber or hard rubber?
They are made both soft and hard, depending on application.
What is the difference between hard corals and soft corals?
The difference is in the name; soft corals have a soft body, with no bony or hard parts. In contrast, hard corals have a hard endoskeleton made of calcium carbonate.
Is Uranus soft or hard?
it is made up of gas so thhe answer is soft
Explain why a magnet can attract pins but not matches?
A magnet is made of 'Soft' Iron. A pin has steel (iron) in it. A match does NOT have iron in it.
Is the outer Core soft or hard?
The outer core of the Earth is actually liquid, made up of molten iron and nickel. This liquid layer is responsible for generating the Earth's magnetic field through convection currents.
Is the Kurrajong tree made of soft wood or hard wood?
The Kurrajong tree is made of very soft wood.
Are alkali earth metals hard or soft?
Alkali earth metals are relatively soft compared to transition metals, like iron or copper. They can be cut with a knife due to their low hardness.
