what is a magnet
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What is a Magnet? A magnet is an object or a device that gives off an external magnetic field. Basically, it applies a force over a distance on other magnets, electrical currents, beams of charge, circuits, or magnetic materials. Magnetism can even be caused by electrical currents. While you might think of metal magnets such as the ones you use in class, there are many different types of magnetic materials. Iron (Fe) is an easy material to use. Other elements such as neodymium (Nd) and samarium (Sm) are also used in magnets.
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MAGNETISM FIND OUT MORE. Magnetism is what gives magnets their ability to attract objects made of iron or steel. A magnet creates around itself a region of space with special properties. This region is known as a MAGNETIC FIELD. When two magnets come near each other, their fields create forces that attract or repel. The Earth is itself a huge magnet, and the force its field exerts on other magnets makes them point in a north–south direction. This effect is used in the magnetic compass.
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Magnet An electromagnet is made from a coil of wire that acts as a magnet when an electric current passes through it but stops being a magnet when the current stops. Often, the coil is wrapped around a core of soft ferromagnetic material such as steel, which greatly enhances the magnetic field produced by the coil. The overall strength of a magnet is measured by its magnetic moment or, alternatively, the total magnetic flux it produces. The local strength of magnetism in a material is measured by its magnetization.
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MAGNETISM MAGNETIC DOMAINS. MAGNETIC FIELD. FIND OUT MORE. Magnetism is what gives magnets their ability to attract objects made of iron or steel. A magnet creates around itself a region of space with special properties. This region is known as a MAGNETIC FIELD.When two magnets come near each other, their fields create forces that attract or repel.The Earth is itself a huge magnet, and the force its field exerts on other magnets makes them point in a north–south direction.This effect is used in the magnetic compass.his region is known as a MAGNETIC FIELD. When two magnets come near each other, their fields create forces that attract or repel. The Earth is itself a huge magnet, and the force its field exerts on other magnets makes them point in a north–south direction. This effect is used in the magnetic compass.
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Questions and Answers Magnets are used extensively in high energy and nuclear physics. We use some of the most powerful magnets in the world and certainly some of the coldest. Ok, to answer your question. Yes, I know what an electromagnet is. I have to assume you want to know a little more than that. An electromagnet is a magnet that is created when electricity flows through a conductor. The magnetic field goes around the conductor. The typical way electromagnets are built is to wrap many coils of wire around a ferromagnetic core (almost always iron).
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- mag·net·ic. adj. 1. a. Of or relating to magnetism or magnets. b. Having the properties of a magnet. c. Capable of being magnetized or attracted by a magnet. d. Operating by means of magnetism: a magnetic recorder.2.ag·net·ic. adj. 1. a. Of or relating to magnetism or magnets. b. Having the properties of a magnet. c. Capable of being magnetized or attracted by a magnet. d. Operating by means of magnetism: a magnetic recorder.
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- The definition of magnetic is being attracted by magnetism, or very attractive. An example of something magnetic is a personality that attracts people; a magnetic personality. 1  having the properties of a magnet: magnetic needle. 2  of, producing, caused by, or operating by magnetism.  of the earth's magnetism: the magnetic poles.
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Magnet Magnetic field lines of a solenoid electromagnet, which are similar to a bar magnet as illustrated below with the iron filings. A magnet (from Greek μαγνήτις λίθος magnḗtis líthos, Magnesian stone) is a material or object that produces a magnetic field.
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Magnet school In the U.S. education system, magnet schools are public schools with specialized courses or curricula. Magnet refers to how the schools draw students from across the normal boundaries defined by authorities (usually school boards) as school zones that feed into certain schools. There are magnet schools at the elementary, middle, and high school levels.
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All About Magnets Science All magnets have the ability to attract other magnets or magnetic objects (such as iron and some other metal objects). But a magnet doesn't necessarily have to touch a magnetic object for the object to be attracted to it. Try this experiment to learn why.
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How Magnets Work Iron filings (right) align along the magnetic field lines of a cylindrical neodymium magnet. To understand the answers to these questions, it helps to have a basic definition of a magnet. Magnets are objects that produce magnetic fields and attract metals like iron, nickel and cobalt. The magnetic field's lines of force exit the magnet from its north pole and enter its south pole. Permanent or hard magnets create their own magnetic field all the time.
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Definitions &Translations This magnetic field is invisible but is responsible for the most notable property of a magnet: a force that pulls on other ferromagnetic materials, such as iron, and attracts or repels other magnets. A permanent magnet is an object made from a material that is magnetized and creates its own persistent magnetic field. An everyday example is a refrigerator magnet used to hold notes on a refrigerator door.
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Learn What Metals are Magnetic and Why Magnets are materials that produce magnetic fields, which attract specific metals. Every magnet has a north and a south pole. Opposite poles attract, while like poles repel.
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Electricity and Magnetism Magnetism is the phenomenon associated with the motion of electric charges. It is a force of attraction or repulsion between various substances, especially those made of iron, cobalt and certain other metals; ultimately it is due to the motion of electric charges.
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magnet An object that attracts iron and some other materials. Magnets are said to generate a magnetic field around themselves. Every magnet has two poles, called the north and south poles. Magnetic poles exert forces on each other in such a way that like poles repel and unlike poles attract each other. A compass is a small magnet that is affected by the magnetic field of the Earth in such a way that it points to a magnetic pole of the Earth.
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- Some facts about magnets include: 1  the north pole of the magnet points to the geomagnetic north pole (a south magnetic pole) located in Canada above the Arctic Circle. 2  north poles repel north poles. 3  south poles repel south poles.4  north poles attract south poles.5  south poles attract north poles. magnet is any material or object that produces a magnetic field. This magnetic field is responsible for the property of a magnet: a force that pulls on other ferromagnetic materials and attracts or repels other magnets.
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electromagnet electromagnet /elec·tro·mag·net/ (e-lek″tro-mag´net) a temporary magnet made by passing electric current through a coil of wire surrounding a core of soft iron. electromagnet A type of magnet used in MRI using coils of wire, typically wound around an iron core, that become magnetised with current flow. electromagnet
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Magnetism An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. The magnetic field disappears when the current is turned off. Electromagnets usually consist of a large number of closely spaced turns of wire that create the magnetic field.
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INTRODUCTION A magnet is any material or object that produces a magnetic field. This magnetic field is responsible for the property of a magnet: a force that pulls on other ferromagnetic materials and attracts or repels other magnets.
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What is a Magnet? Air-core magnets are created by current flowing through a wire. That current produces the magnetic field. You create an air-core magnet by wrapping miles of wire around in a doughnut shape (toroid). When you send current through the wire, a magnetic field is created inside of the doughnut.
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Magnet Magnets are made from magnetic materials. These are metals that can be magnetised or will be attracted to a magnet. Most materials are not magnetic, but iron, cobalt and nickel are magnetic. Steel is mostly iron, so steel is magnetic too.
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magnetic magnetic - having the properties of a magnet; i.e. of attracting iron or steel; the hard disk is covered with a thin coat of magnetic material magnetised, magnetized antimagnetic - impervious to the effects of a magnetic field; resistant to magnetization; an antimagnetic watch
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Frequently Asked Questions (FAQs) about Magnet Magnet is the “gold standard” for nursing excellence. Our focus should not be to achieve the award but to create a culture that has the best patient outcomes and the best work environment. Only about 6% of US Hospitals achieve Magnet designation.
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- A magnet keeper, or armature is a ferromagnetic bar made from soft iron or steel which is placed across the poles of a permanent magnet to help preserve the strength of the magnet by completing the magnetic circuit; it is particularly useful for magnets which have a low magnetic coercivity, such as Alnico magnets. magnet keeper, or armature is a ferromagnetic bar made from soft iron or steel which is placed across the poles of a permanent magnet to help preserve the strength of the magnet by completing the magnetic circuit; it is particularly useful for magnets which have a low magnetic coercivity, such as Alnico magnets.
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- The definition of magnetic is being attracted by magnetism, or very attractive. An example of something magnetic is a personality that attracts people; a magnetic personality. 1  having the properties of a magnet: magnetic needle.  of, producing, caused by, or operating by magnetism.