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Magnet - Wikipedia
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, steel, nickel, cobalt, etc. 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
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List of Magnetic Metals - Science Notes and Projects
2021.3.2 Nickel Cobalt Gadolinium Dysprosium Terbium Some types of steel (e.g., ferritic stainless steel) Neodymium, iron, boron alloy (Nd magnet)
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Magnetic fields - CCEA Magnetic field of a bar magnet - BBC
magnetic field. is reduced. Converting a magnet to a non-magnet is called demagnetisation. Magnets are made from magnetic metals – iron, nickel and cobalt.
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Magnets and magnetic fields - Edexcel Magnetic fields - BBC
The behaviour of a compass shows that the Earth has a magnetic field. The Earth’s core, which is made from iron and nickel, produces this magnetic field.
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Magnetism - Wikipedia
e. Magnetism is the class of physical attributes that occur through a magnetic field, which allows objects to attract or repel each other. Because both electric currents and magnetic moments of elementary particles
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Magnets and magnetic materials - BBC Bitesize
This is because 5p and 10p coins used to be made out of cupro-nickel, but this was changed to nickel-plated steel. Steel contains iron, making the coins magnetic. Can you
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How Magnets Work HowStuffWorks
2022.9.20 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.
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21.1: Magnetism and Magnetic Fields - Physics LibreTexts
A magnetic field is generated by a feedback loop: Current loops generate magnetic fields (Ampère’s law); a changing magnetic field generates an electric field (Faraday’s law); and the electric and magnetic fields exert
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Effect of Magnetic Field on Corrosion Performance of
2022.12.6 The corrosion protection efficacy of Ni–Co alloy coatings was tried to improve by magnetoelectrodeposition (MED) approach. The magnetic field of varying strength (B) was applied in perpendicular and
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Earth's magnetic field - Wikipedia
Earth's magnetic field, predominantly dipolar at its surface, is distorted further out by the solar wind. This is a stream of charged particles leaving the Sun's corona and accelerating to a speed of 200 to 1000 kilometres
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The magnetization of pure iron and nickel
Field gradients were determined by point-by-point field plotting with a nuclear magnetic resonance (n.m.r.) field probe mounted on a micrometer carriage. Since small gradients were employed, good resonance signals were obtained. A natural water sample was used for resonance in fields up to 8 kOe, and deuterated water between 8 and 10.5 kOe.
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Physicists find unusual waves in nickel-based magnet
2023.4.17 This is called the crystal field effect, and it can force electron spins to orient themselves along directions distinct from the orientation of the magnetic field. Probing crystal field effects in the nickel molybdate crystals required additional experiments and theoretical interpretation of the data from the experiments.
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Physics - Stirring Up a Magnetic Field
2000.5.5 Scientists have for the first time created a magnetic field in the lab by stirring up molten metal–the same way the Earth does. Source of the field. Earth’s flowing liquid core (yellow, surrounding solid core) generates our planet’s magnetic field. Now physicists have generated the first magnetic field in a lab using the same mechanism.
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Earth's Magnetic Field: Origin, Structure, and Impact on Humanity
The outer core, composed of liquid iron and nickel, generates the Earth’s magnetic field through a dynamo process driven by convective motions of the fluid combined with the rotation of the Earth. The fluid motions and the generated magnetic field are both subject to chaotic behavior, leading to periods of instability during which the magnetic field
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Tunable piezoresistivity of low percolation threshold micro-nickel
The μNi wires were dispersed in PDMS and cured in a magnetic field of 17 mT to align the μNi wires along the direction of the magnetic field. An ultra-low percolation threshold (0.31 vol%) has been achieved, which is more than an order of magnitude lower than the 4.79 vol% of the control sample without a magnetic field.
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Nickel - Wikipedia
Nickel and its alloys are often used as catalysts for hydrogenation reactions. Raney nickel, a finely divided nickel-aluminium alloy, is one common form, though related catalysts are also used, including Raney-type catalysts. Nickel is naturally magnetostrictive: in the presence of a magnetic field, the material undergoes a small change in length.
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Can Nickel Be Attracted To A Magnet? Dr Bakst Magnetics
2022.10.3 The penny, nickel, and aluminum foil balls are not magnetic in any way. Nickel (Ni) is ferromagnetic because the two unpaired electrons that form its’spins’ are aligned in such a way that they are attracted to an external magnetic field. Because nickel contains a permanent magnetization property despite the absence of magnetic fields, it
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What Is Magnetism? Magnetic Fields Magnetic Force
2022.2.2 Magnets, or the magnetic fields created by moving electric charges, can attract or repel other magnets, and change the motion of other charged particles. Magnetism is a force of nature produced by ...
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Materials Free Full-Text Magnetic Field Patterning
2019.3.20 Magnetic anisotropy was induced with an axis along the direction of the applied magnetic field, giving soft magnetic properties. This paper demonstrates an easily prepared novel material and
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Ferromagnets and Electromagnets Physics - Lumen
Electromagnets employ electric currents to make magnetic fields, often aided by induced fields in ferromagnetic materials. Glossary ferromagnetic: materials, such as iron, cobalt, nickel, and gadolinium, that exhibit
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Magnetism - Wikipedia
Magnetism is the class of physical attributes that occur through a magnetic field, which allows objects to attract or repel each other.Because both electric currents and magnetic moments of elementary particles give
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How Nickel Works With Magnets Dr Bakst Magnetics
2022.12.17 Nickel is a metal that is ferromagnetic, meaning that it is attracted to magnets. It is also used in many alloys, including stainless steel. When nickel is in the presence of a magnetic field, themetal’s atoms align themselves with the magnetic field. This alignment creates a magnetic force within the metal that can interact with other
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The Earth’s magnetic field - Oxford Academic
The Earth is surrounded by a magnetic field, which originates inside its molten core, and which for centuries has helped travellers to navigate safely across uncharted regions. The magnetic field protects life on the Earth by acting as a shield against harmful radiation from space, especially from the Sun. ‘The Earth’s magnetic field ...
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Learn What Metals Are Magnetic and Why - ThoughtCo
2019.10.2 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. While most magnets are made from metals and metal alloys, scientists have devised ways to create magnets from composite materials, such as magnetic polymers.
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List of Magnetic Metals - Science Notes and Projects
2021.3.2 Magnetic metals include iron, nickel, cobalt, and steel. Magnetic materials are attracted to a magnet and may even become magnetized. Nearly all magnetic materials are metals. Familiar examples of magnetic metals include iron, nickel, cobalt, and steel. But, magnetism is a complex phenomenon. Not all iron or steel is magnetic.
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Magnetic-field-dependent optical transmission of nickel nanorod ...
2009.12.1 Aqueous dispersions of nickel nanorods, ≈13 nm in diameter and 40–160 nm in length, were synthesized using ac electrodeposition into porous alumina templates. The nanorods in suspension can be aligned by modest magnetic fields, which leads to a change in the optical transmittance of the dispersion. Optical transmission
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Electromagnetic Radiation and Fields - Lawrence Berkeley
2018.3.1 Static magnetic fields exert an attracting force on metallic objects containing for example, iron, nickel or cobalt. The quantity of ferrite (a form of iron) or martensitic steel (specific type of stainless steel alloy) in an object will affect its magnetic ability: the greater the quantity of these components, the greater the ferromagnetism.
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How Magnets Work HowStuffWorks
2022.9.20 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. Temporary or soft magnets produce magnetic fields while in the presence
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