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What metal or alloy can be used to stop magnetic field?
Seshibhushan
The simple answer is none. However magnetic fields will take the path of least resistance; soft iron does not retain magnetism and offers a path of lower resistance than air so it will tend to divert a field from travelling through whatever it surrounds. If the field is strong then the magnetic shield will have to be more massive.
Mu metal is a name of a low retentivity iron product. Other ferrous and nickel alloys will offer some protection.
If the source of the magnetism is a point then the field strength will diminish by approx. the square of the distance from the source, so double the distance and the force is reduced to a quarter.
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Can magnetism be shielded?
Mu-metal does a pretty good job for smaller fields, but completely shielding something from a magnetic field with a high field strength is not doable. Giron is supposed to be pretty good, and so is MetGlas, but they cannot stop (deflect) all the field lines from a strong field. Highly permeable material is the best shielding. Magnetic lines of force like to travel through permeable materials. That's what permeable means - an easy (easier) route than through space, air, whatever, for magnetic lines of force. What these shielding materials are doing is giving the magnetic lines of force a place to travel other than through space or through whatever is being shielded. The field still exists, but it's concentrated inside the shielding. And the lines of force will reappear from inside the shielding material at its edges. What else would one expect? The shielding can't make the lines of force disappear. As it re-routes them, it means that it has to re-release them somehow. Field density at the edges of shielding will be high. The field is collected for re-routing and distributed back into space after re-routing at a shield's edges. The materials cited are passive shields. Active shields can be constructed, but they are most challenging to engineer. Active magnetic shielding is used in the machinery for magnetic resonance imaging (MRI), and it is an active winding that is driven by an electronics package so that it "cancels out" fields outside the main coil. It's a headache and a half to design and implement active shielding. No shielding can block, stop, or re-route all the magnetic field lines from a magnetic source. Some lines of force will not be re-routed through the shielding and will appear on the other side of it.
What will happen if the flow of hot rock in earths mantle if the planets core eventually cools?
The flow of hot rock in earths mantle will stop and Earth's magnetic field will disappear
What is that gas element or subject involving freezing of light to a complete or near stop?
bose-einstein condensate. not a specific element or material, but a very cold collection of particles called bosons. cold enough and all the bosons suddenly condense into the identical state, add a magnetic field of the right strength and light will stop moving in the magnetized condensate.
Why are the metal prongs of a plug sealed in plastic or rubber?
to stop them from moving
Does a magnet always have 2 poles?
All permanent magnets have two poles.A permanent magnet may have a complicated geometry, but even then the magnetic poles always reduce to the category of north pole or south pole.We say that magnetic field lines start at a north pole and end at a south pole. (In reality, the lines go through the magnet and connect inside so there really is never an end to a magnetic field line.)Electromagnets do not have a pole in the same sense as a permanent magnet, so there is no place on an electromagnet for a field line to start or stop. That is fine, of course, since it is really having field line starting or stopping which is not allowed by the laws of physics.The fundamental laws of magnetism do not permit the possibility of a single pole on a magnet or atom or particle of any sort. Such a thing has a name. It is called a magnetic monopole. There have been extensive searchers for such an entity, but none have been found. We do not have a guarantee that none exist however. Of course, if one were found it would require that we alter the equations that now constitute the basic laws of electromagnetic theory.yes
Which metal is stop the magnetic field no effect in other side?
nothing can disrupt a magnetic feild
Will aluminum and bronze stop magnetic field as a magnetic shield?
Not at all well
When and magnetic fields exist its called an electromagnetic field?
A temporary magnetic field created by a flowing electrical current is an electromagnetic field. Stop the current from flowing, it goes away.
What does the Earth's magnetic field stop from hitting the Earth's surface?
Solar Winds
What will happen when the core stop moving?
If this happens then the earth's Magnetic field will be lost.
What material blocks a magnetic field?
There are no materials that STOP magnetic fields. Some have proposed that a faraday cage will stop magnetic fields, but this is not true because magnetism is a field, not a wave. The most effective way to block a magnetic field is to put a bunch of space between it and whatever's in trouble. Ideally, you could encase a magnet in a large plexiglass bubble to keep distance.
Can electromagnetic field stop magnetic waves?
Nope. It would be like trying to stop a wave with a moat. The wave would just continue to propagate through.
Is it possible for the opposing magnetic field to be strong enough to completely stop an object from falling?
No because the magnetic field induced attracts the falling magnet, creating a force which slows down the magnet. If the magnetic field increased to a certain point where the force acting on the magnet was enough to stop the magnet from falling, gravity would act on the bob, causing the magnet to speed up again until it reaches a happy medium speed (or even a terminal speed if you will). When this happens, a changing magnetic field occurs and an induced current is formed again. This cycle repeats.
Does an automatic watch run slow if it gets magnetized?
I suppose it could, yes - it will stop if the magnetic field is strong enough.
What substance can solar winds not penetrate?
Just about any solid object will stop the solar wind. A sheet of aluminum foil would be effective. More important is the idea that magnetic fields, like planetary magnetic fields, deflect the solar wind. (This though a magnetic field is not a substance, per se.) Earth's magnetic field does a fine job of this.
What is the thinnest metal from 1mm to 1cm that can stop or resist a 5.56mm round?
Too many variables to answer. What metal? What alloy? Which 5.56 round? From what distance? At what angle of impact? Change any one of those, and the answer changes. Sorry-
Why can't magnetism be stopped?
There is no technology available now, no magnetic insulator, that can stop or block a magnetic field. All that can be done is to shield against the field. This shielding is an effect that amounts to directing, or channaling the magnetic field around what we wish to protect.Actually, it is fairly easy to shield something from magnetic fields by enclosing it completely in a foil of metal which is highly permeable to magnetism, such as mu-metal. A steel or nickel box will provide quite a bit of shielding. The "softer" the metal to magnetism, the better the shield.Mu-metal is a family of alloys of approximate composition 77% nickel, 16% iron, 5% copper and 2% chromium or molybdenum. It is "hardened" by bending or working, which is to be avoided.However, some metals which are highly effective as electrostatic shields are of little use as magnetic shields. Copper braid and aluminum enclosures provide little shielding from magnetic fields at ordinary frequencies. Thus, "shielded cable" for electrical signals is quite susceptible to magnetic interference.Magnetic pickup can be minimized by routing cables away from strong sources of magnetism and/or by twisting pairs of wires which will carry the signal and its return. If the magnetic interference is coming from another cable, pickup will be reduced by having the wires cross at right angles. (Don't run them side by side!)Electromagnets wound on a toroidal core produce little external magnetic field, and at high frequencies, there may be advantages to using Litz wire.
