magnetism and transformers (terminology (RELUCTANCE (the property of a…
magnetism and transformers
the property of a magnetic circuit of opposing the passage of magnetic flux lines, equal to the ratio of the magnetomotive force to the magnetic flux.
a quantity measuring the influence of a substance on the magnetic flux in the region it occupies.
Remanence or remanent magnetization or residual magnetism is the magnetization left behind in a ferromagnetic material (such as iron) after an external magnetic field is removed. It is also the measure of that magnetization.
the amount of magnetic, electric, or other flux passing through a unit area.
The ability of a substance to retain or resist magnetization, frequently measured as the strength of the magnetic field that remains in a sample after removal of an inducing field
In physics, specifically electromagnetism, the magnetic flux through a surface is the surface integral of the normal component of the magnetic field B passing through that surface. The SI unit of magnetic flux is the weber, and the CGS unit is the maxwell
. This chemistry definition refers to a saturated compound. A saturated substance is one in which the atoms are linked by single bonds. A fully saturated compound contains no double or triple bonds. Alternatively, if a molecule contains double or triple bonds, it is considered to be unsaturated.
Flux density (Magnetic flux density) A magnetic field at any given point can be seen as a vector in the direction of the field with a magnitude equal to the Lorentz force exerted on an electric wire oriented perpendicular to the lines of force, expressed in amperes per metre
Magnetic flux is a measurement of the total magnetic field which passes through a given are A field line passing through at a glancing angle will only contribute a small component of the field to the magnetic flux.
The North Magnetic Pole is the wandering point on the surface of Earth's Northern Hemisphere at which the planet's magnetic field points vertically downwards (in other words, if a magnetic compass needle is allowed to rotate about a horizontal axis, it will point straight down)
The South Magnetic Pole is the wandering point on the Earth's Southern Hemisphere where the geomagnetic field lines are directed vertically upwards. It should not be confused with the South Geomagnetic Pole described later
Diamagnetism is a quantum mechanical effect that occurs in all materials; when it is the only contribution to the magnetism, the material is called diamagnetic. In paramagnetic and ferromagnetic substances the weak diamagnetic force is overcome by the attractive force of magnetic dipoles in the material.
Ferromagnetism is the basic mechanism by which certain materials (such as iron) form permanent magnets, or are attracted to magnets. In physics, several different types of magnetism are distinguished.
metals that are
metals that are not attracted