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A magnet attracts a piece of iron and the iron can then attract another piece of iron .What is the basis of this attraction?
When an iron piece is quite away from the magnet ,i.e, not present in magnetic field of the magnet then the iron piece is in neutral state ,i.e, there is no north & south pole . But , as soon as the iron piece interacts with magnetic field of magnet ,i.e, near to the magnet then the north pole of magnet make the nearer part or end of the iron piece south pole & simultaneously other part of iron becomes north pole . Similarly if south pole of the magnet interacts with iron piece then that end/part becomes north pole & other end becomes north pole . Now this iron piece has north & south pole .So iron piece is now converted into magnet which can attract other iron pieces in similar way as explained before .
What do you call a piece of country rock that breaks off and becomes entrapped in a body of magma?
A piece of country rock that breaks off and becomes entrapped in a body of magma is called a xenolith.
How would you describe magnetic domains?
Each magnetic domain has a magnetic field. When an external magnetic field is applied, the magnetic domains will partially align, so the magnetic fields reinforce one another - instead of canceling one another, which is what happens when they are randomly distributed.
Why aren't all iron materials permanent magnets?
When a magnet or iron piece is watched under a powerful microscope we will obseve that a magnet or iron is made up tiny tiny pieces which cannot be further divided realistically such small pieces are known as domains. In a magnet all domains are in the same direction due to which it attracts iron. While in a iron these domains are arranged randomly which nullify its magnetism. When a magnet is brousht near an iron matrial all the domains get attracted to the magnet due to which domains in iron get arranged in a particular direction due to wich at that time they act as magnets but as soon as the magnet gets farther the domains again arrange them selves randomly due to which tey do not remain permanent magnets
What are the small individual areas within a magnet called?
magnetic domains. itdescribes a region within a magnetic material which has uniform magnetization. This means that the individual magnetic moments of the atoms are aligned with one another and point in the same direction. Below a temperature called the Curie temperature, a piece of ferromagnetic material undergoes a phase transition and its magnetization spontaneously divides into many tiny magnetic domains, with their magnetic axes pointing in different directions. Magnetic domain structure is responsible for the magnetic behavior of ferromagnetic materials like iron. The regions separating magnetic domains are called domain walls where the magnetisation rotates coherently from the direction in one domain to that in the next domain.
What is the difference between the domains in a piece of magnetized metal and a piece of unmagnetized metal?
In a piece of magnetized metal, the domains are aligned in the same direction, creating a strong magnetic field. In an unmagnetized metal, the domains are randomly oriented, resulting in no net magnetic field. Magnetizing a piece of metal aligns the domains to create a magnetic field, while in an unmagnetized metal, the domains are in a natural random orientation.
How is the arrangement of domains different in a magnetised and a non magnetised piece of iorn?
In an unmagnetised piece of iron, these magnetic domains are arranged randomly and point in lots of different directions - they cancel each other out. In a magnetised piece of iron, all these domains point in the same direction. This makes one end of the magnet act as a north pole and the other end act as a south pole. The better the domains are aligned, the stronger the magnet. Bye bye!
A north pole will attract a piece of unmagnetised steel?
Only by inducing a magnetic field within the "unmagnetised steel".
What happens when one piece of metal is melted?
It becomes hot liquid.
What happens to a magnetic domains of a piece of iron when it is placed in a magnetic field?
They all end up going in different directions so that it is magnetic anymore.
What can you do to align all of the domains in a piece of iron?
To align all the domains in a piece of iron, you can subject the iron to a magnetic field. As the iron is exposed to the magnetic field, the domains will gradually align in the direction of the field, resulting in the iron becoming magnetized.
Which orientation characterizes the magnetic domains in an unmagnetized piece of iron?
In an unmagnetized piece of iron, the magnetic domains are randomly oriented. This means that the magnetic moments of the atoms within the domains are pointing in different directions, resulting in no overall magnetic field being exhibited by the material.
What happens to the size of the fractional piece as the denominator increases if the numerator stays the same?
It becomes smaller; eventually becoming infinitesimally tiny.
What happens when an asteroid strikes the ground?
The asteroid becomes one or more meteorites and may leave a crater if the impacting piece was large enough.
Which orientation characterizes the magnetic domains in a nonmagnetized piece of iron?
In a nonmagnetized piece of iron, the magnetic domains are randomly oriented, meaning their magnetic moments are pointing in various directions. This results in the overall magnetic field of the iron being neutral or canceling out.
How can you turn a piece of iron into a magnet?
To turn a piece of iron into a temporary magnet, wind a coil of (insulated) copper wire around it and run a DC current through the wire. The iron will become the core an electromagnet -- the one you just constructed. As long as direct current flows through the coil, the iron core will attract ferromagnetic materials.jkghyjy Wrap many coils of lacquered copper wire round an iron nail. When electricity is sent through the coils, the nail becomes magnetised. The iron is an electromagnet as long as the power is on. When a piece of iron is brought near the magnet it also becomes a temporary magnet.
What happens if something goes into a black hole?
It becomes spagghettified. No one knows what happens after it goes in though. Spaghettified basically if you were to take ~, and stretch it until it came to you, stretching it and basically making something large a small piece of nothing.
