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2. Eddy current - Wikipedia

   en.wikipedia.org/wiki/Eddy_current

   A magnet induces circular electric currents in a metal sheet moving through its magnetic field. See the diagram at right. It shows a metal sheet (C) moving to the right with velocity v under a stationary magnet. The magnetic field (B, green arrows) of the magnet's north pole N passes down through the sheet.

3. Coercivity - Wikipedia

   en.wikipedia.org/wiki/Coercivity

   Coercivity, also called the magnetic coercivity, coercive fieldor coercive force, is a measure of the ability of a ferromagneticmaterial to withstand an external magnetic fieldwithout becoming demagnetized. Coercivity is usually measured in oerstedor ampere/meter units and is denoted HC. An analogous property in electrical engineeringand ...

4. Staple (fastener) - Wikipedia

   en.wikipedia.org/wiki/Staple_(fastener)

   A heavy duty office staple might be designated as F1667 STFCC-04: ST indicates staple, FC indicates flat top crown, C indicates cohered (joined into a strip), and 04 is the dash number for a staple with a length of 0.250 inch (6 mm), a leg thickness of 0.020 inch (500 μm), a leg width of 0.030 inch (800 μm), and a crown width of 0.500 inch ...

5. Magnetic flux - Wikipedia

   en.wikipedia.org/wiki/Magnetic_flux

   Magnetic flux. In physics, specifically electromagnetism, the magnetic flux through a surface is the surface integral of the normal component of the magnetic field B over that surface. It is usually denoted Φ or ΦB. The SI unit of magnetic flux is the weber (Wb; in derived units, volt–seconds), and the CGS unit is the maxwell.

6. Saturation (magnetic) - Wikipedia

   en.wikipedia.org/wiki/Saturation_(magnetic)

   magnetite [1] Seen in some magnetic materials, saturation is the state reached when an increase in applied external magnetic field H cannot increase the magnetization of the material further, so the total magnetic flux density B more or less levels off. (Though, magnetization continues to increase very slowly with the field due to paramagnetism .)

7. Force between magnets - Wikipedia

   en.wikipedia.org/wiki/Force_between_magnets

   Force between magnets. Magnets exert forces and torques on each other through the interaction of their magnetic fields. The forces of attraction and repulsion are a result of these interactions. The magnetic field of each magnet is due to microscopic currents of electrically charged electrons orbiting nuclei and the intrinsic magnetism of ...