permanent magnetic
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Definitions &Translations A magnet is a material or object that produces a magnetic field. 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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Diamagnetism Diamagnetism is a quantum mechanical effect that occurs in all materials; when it is the only contribution to the magnetism the material is called a diamagnet. Unlike a ferromagnet, a diamagnet is not a permanent magnet. Its magnetic permeability is less than μ 0, the permeability of vacuum.
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A Brief History By the 1930s, researchers had produced the first powerful Alnico alloy permanent magnets. In 1966 the first rare earth magnets were developed from Samarium-Cobalt (SmCo5) producing a high energy product of 18 MGOe.
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- Call us at 828-626-2901 and learn more about a Custom Designed Permanent Magnet Motor for your application. 1  Fork Lifts. 2  Amusement Rides. 3  Reels | Winches. 4  Marine Pumps. 5  Scissor Lifts. 6  Robots (Law Enforcement, Military) 7  Railroad (Track Switches, Crossing Gates) 8  Electric Vehicles (AGV’s, Tugs, Go Carts) 9  Pump Drives.
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Glossary of Magnetic Terms MAGNET: A material that has the property, either natural or induced, of attracting iron or steel. MAGNETIC FIELD: The space around a magnet in which the magnetic force can be detected. MAGNETIC FLUX: The total magnetic induction across or through a specified area. MAGNETIC INDUCTION, B: The production of magnetic properties in a magnetizable substance when placed in a magnetic field.
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Earth's magnetic field Earth's magnetic field (and the surface magnetic field) is approximately a magnetic dipole, with the magnetic field South pole near the Earth's geographic north pole (see Magn … etic North Pole) and the other magnetic field N pole near the Earth's geographic south pole (see Magnetic South Pole).arth's magnetic field (and the surface magnetic field) is approximately a magnetic dipole, with the magnetic field South pole near the Earth's geographic north pole (see Magn … etic North Pole) and the other magnetic field N pole near the Earth's geographic south pole (see Magnetic South Pole).
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- Victoria Gotti was born on November 27, 1962 in Brooklyn, New York, USA. She is an actress, known for The Apprentice (2004), Growing Up Gotti (2004) and You Got Whacked! (2006). She was previously married to Carmine Agnello.
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Episode 411: Describing magnetic fields The use of two permanent magnets will remind students that there is a magnetic field around each magnet. (This can be done quickly with an OHP or by allowing the students to experiment with a pair of magnets.)
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- Non magnetic iron left undisturbed will acquire a field from the magnetic field of the earth, so some change in the orientation of the field could happen to these little magnets, depending on how they lay with respect to the weak field of the earth.share | cite | improve this answer. answered Sep 15 '11 at 4:27.f a permanent magnet could decay at the rate given in Rook's answer above there would be none found in geological strata. A permanent magnet has a permanent orientation of the magnetic moments in a specific vectorially additive direction depending on small crystal domains.
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How Magnets Work 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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- 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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Q & A: magnetic energy Typical permanent magnets are made deliberately. Some magnetic material is heated up, a magnetic field applied, and then the material cools in the field. Lots of energy is wasted in this process, but let’s follow just where the field energy is made.hen a field is applied (usually via an electromagnet) to the warm material, it lines up the domains. It takes energy input to that electromagnet to do work lining up the magnetic domains. So the energy came from whatever supplied the electrical power.
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Magnetic Tag Holder Strips Magnetic Tag Holder Strips. Clear plastic holder with springy flap to grip tags, tickets, cards. Hold tags, cards, tickets and notes in place. · One or more inserts can be placed in the strip and then slid along the holding channel. as needed. · Constructed of clear plastic with a springy flap on the front. · Hold paperwork on magnetic whiteboards, steel cabinets, or other steel surfaces.
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- Gather supplies. A simple temporary magnet can be made with a tiny piece of metal, such as a paperclip, and a refrigerator magnet. Gather these items as well as a smaller piece of metal, such as an earring back or a tiny nail, that you can use to test the magnetic properties of the magnetized paperclip.
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Rare-earth magnet Rare-earth magnet. Rare-earth magnets are strong permanent magnets made from alloys of rare earth elements (elements in the lanthanide series, plus scandium and yttrium).
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- This point moves gradually over time. The North Magnetic Pole is physically a magnetic field south pole. The North Magnetic Pole should not be confused with the lesser known North Geomagnetic Pole. In 2001, the North Magnetic Pole was determined by the Geological Survey of Canada to lie near Ellesmere Island in northern Canada at 81°18′N 110°48′W / 81.3°N 110.8°W / 81.3; -110.8 (Magnetic North Pole 2001). It was estimated to be at 82°42′N 114°24′W / 82.7°N 114.4°W / 82.7; -114.4 (Magnetic North Pole 2005 est) in ...
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Magnet Basics Magnet Basics. Magnets can either attract or repel each other. A permanent magnet is an object that produces a magnetic field around itself. It is this field that enables them to stick to each other and to some types of metal. Specifically, they stick to ferromagnetic materials like iron and things that contain iron, such as steel.
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How Permanent Magnet Generators Work? Also, permanent magnet generators do not require additional current for the excitation circuit. These generators do not use slip rings which aids in a maintenance free and simple design. Once you install a permanent magnet generator, you can expect years of dependable service from these machines.The sealed construction of these generators also makes them ideal for usage in harsh environments that contain dust, grit and heat.ermanent magnet generators are relatively easy to set up and these are also small in size which further adds to the mobility and helps in saving space in a place where these are installed. Benefits of Using Permanent Magnet Generators.
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Ferromagnetism Share to: Most metals are not magnetic. Only Iron Cobalt and Nickel are ferromagnetic at room temperature. Ferromagnetism is a property not just of the chemical make-up of a material, … but of its crystalline structure and microscopic organization.
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- Permanent dipole-permanent dipole interactions. Permanent dipole-permanent dipole interactions are additional electrostatic forces of attraction between polar molecules. Permanent dipole-permanent dipole interactions are stronger than Van der Waals' forces for molecules of equivalent size. A molecule can be described as polar if it has a permanent dipole. A permanent dipole is due to a difference in electronegativity between the atoms involved in a covalent bond.
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- A permanent magnet will have a unique, static operating point if air-gap dimensions are fixed and if any adjacent fields are held constant. Otherwise, the operating point will move about the demagnetization curve, the manner of which must be accounted for in the design of the device.
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- Permanent dipole-permanent dipole interactions. Permanent dipole-permanent dipole interactions are additional electrostatic forces of attraction between polar molecules. Permanent dipole-permanent dipole interactions are stronger than Van der Waals' forces for molecules of equivalent size.A molecule can be described as polar if it has a permanent dipole. A permanent dipole is due to a difference in electronegativity between the atoms involved in a covalent bond.ermanent dipole-permanent dipole interactions. Permanent dipole-permanent dipole interactions are additional electrostatic forces of attraction between polar molecules. Permanent dipole-permanent dipole interactions are stronger than Van der Waals' forces for molecules of equivalent size.
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Differences between Hard and Soft Magnetic Materials Hard Magnetic Materials. Soft Magnetic Materials. 1. Materials which retain their magnetism and are difficult to demagnetize are called hard magnetic materials. These materials retain their magnetism even after the removal of the applied magnetic field. Hence these materials are used for making permanent magnets.n permanent magnets the movement of the domain wall is prevented. They are prepared by heating the magnetic materials to the required temperature and then quenching them. Impurities increase the strength of hard magnetic materials. Soft magnetic materials are easy to magnetize and demagnetize.
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CERAMIC MAGNETS Ceramic (ferrite) permanent magnets are composed of strontium carbonate and iron oxide. They are charcoal gray in color and usually appear in the forms of discs, rings, blocks, cylinders, and sometimes arcs for motors. Attributes of Ceramic Magnets. High intrinsic coercive force. Tooling is expensive.
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Magnet A magnet's magnetism decreases when it is heated and increases when it is cooled. It has to be heated at around 1000 degrees Celsius. Like poles (S-pole and S-pole/N-pole and N-pole) will repel each other while unlike poles (N-pole and S-pole) will attract each other. Magnets are only attracted to special metals. Iron, cobalt and nickel are magnetic.