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Can touch water. You want to ask if the magnet will rust or lose its magnetism when it touches water? The composition of the magnet is ferric tetroxide, which is originally an iron oxide, so it will not rust.
As for magnetism, the magnetism of a permanent magnet is not lost due to external influences. Permanent magnets can, and they don't get in the way.
The electromagnet is well insulated and can not be short-circuited.
Water basically does not affect the magnetic field. (The impact is minimal, and you will have a rational understanding of the theory of the electromagnetic field of the medium in college).
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Permanent magnets can, and they don't get in the way.
The electromagnet is well insulated and can not be short-circuited.
Water basically does not affect the magnetic field. (The impact is minimal, and you will have a rational understanding of the theory of the electromagnetic field of the medium in college).
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Pure magnets do! If it is a normalized magnet or a non-pure magnet touching water, it may affect the magnetism of the magnet! If it's an electromagnet, then I advise you not to try it! ~
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You can touch the water, and before my bucket fell into the river, I used a magnet to suck it up.
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Boiling water doesn't work! The magnet cannot be heated, otherwise it will lose its magnetism.
Save me big brother, do you know the principle of the magnetic switch of the rice cooker? As long as the degree will be demagnetic, what do you say about the Curie point! According to you, the rice cooker is going to burn and melt!
In addition, not all magnets are made of ferrite, some are made of high-carbon steel, which will rust!
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0406ZGB Please, the Curie point of the magnet is more than 700 degrees, that is, 700 degrees will be non-magnetic.
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Summary: Nothing will change. Magnets only attract magnetic-containing substances, whereas water is non-magnetic, so even if the magnet is placed on water, it will not cause any change.
The composition of the magnet is iron, cobalt, nickel and other atoms, and the internal structure of the atoms is relatively special, and it itself has a magnetic moment. Magnets are capable of generating magnetic fields and have the property of attracting ferromagnetic materials such as iron, nickel, cobalt, and other metals.
Introduction to magnetsMagnets are not invented by man, they are natural magnetite. The ancient Greeks and Chinese discovered that there is a natural magnetized stone in nature and called it "magnet stone". The stone magically picks up small pieces of iron, and always points in the same direction after swinging at will.
Early voyagers used this magnet as their earliest compass to discern direction at sea. The first to discover and use magnets should be the Chinese, that is, to use magnets to make "compasses", one of China's four major inventions.
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Because the magnet cannot absorb water, water cannot change the direction of the magnetic field lines of the magnet.
The magnetic field lines of the magnet are able to pass through the water to absorb iron.
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Question 1: Can a magnet attract iron through water Yes, the magnetic field has a certain penetration, similar to electromagnetic waves.
As long as there is a magnetic field, it can attract iron, and the main thing is whether the object you are separated from can interfere with the magnetic field.
For example, we often see warnings such as those with pacemakers and need to stay away near the MRI room of the hospital.
Question 2: Can magnets attract iron through anything? As far as magnetism is concerned, substances are divided into three categories: non-magnetic materials, soft magnetic materials and hard magnetic materials.
The magnetic field can penetrate non-magnetic materials without deformation. And the shape of the magnetic field can be found in high school physics books. The magnetic field cannot penetrate the soft magnetic material, but can only conduct in it, according to which magnetic shielding can be achieved.
The magnetic field deforms when it encounters a hard magnetic substance.
That is, the attraction of the magnetic field to iron remains unchanged across a piece of non-magnetic matter. If it is a magnetic substance, the magnet may also attract iron, but the direction and intensity of the force will change.
Question 3: Can a magnet absorb iron through a gas or liquid Yes, the magnetic field has a certain penetration, similar to electromagnetic waves. For example, when we are often near the MRI room of the hospital, we will see warnings such as twitching away from the pacemaker.
Question 4: Operate to fill some water in the water cup, put a small iron nail or paper clip into the water, and use a magnet to try to absorb iron through the water? This should be related to the size of the magnetic force and the material and thickness of the cup, question 5: Can the magnet absorb iron through the iron Yes, the glass will not isolate the magnetic field.
Question 6: Why can't magnets suck things through water Magnets can suck things through water.
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The magnet can touch water without any loss of its magnetism. The principle of magnets is that the atoms in the iron element are arranged in the order of the top (the atoms in ordinary iron are arranged in disorder), so the iron has magnetism, so the arrangement of the atomic order in the iron element is not disturbed after encountering water.
The midpoint of the bar magnet is hung with a thin wire, and when it is stationary, its two ends point to the south and north of the earth, the one end pointing north is called the north pole or n pole, and the one end pointing south is the guide pole or s pole.
If the Earth is imagined as a large magnet, the Earth's magnetic north pole is the guide pole, and the geomagnetic south pole refers to the north pole. Between magnets and magnets, the poles of the same name repel each other, and the poles of the same name attract each other. So, the compass repels the South Pole, the north arrow repels the North Pole, and the compass attracts the north pole.
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Because the magnet cannot absorb water, water cannot change the direction of the magnetic field lines of the magnet.
The magnetic field lines of the magnet are able to pass through the water to absorb iron.
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It seems that it can, because we know that the magnet can be separated by a thing, and the water is very deep, and the water is not deep.
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Except for the ferromagnetic material with a thick partition that will shield the magnetic force, other materials cannot isolate the magnetic force, such as glass, paper, wood, and plastic, which can continue to absorb iron.
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The magnet can be separated by a water tin magnet.
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No, it will freeze and crack.
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