Magnetic field
Magnetic Field
A Magnetic Field (pronunciation: /mæɡˈnɛtɪk fiːld/) is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials.
Etymology
The term "Magnetic Field" is derived from the Latin word 'magnes', meaning 'magnet', and the English word 'field', which in this context, refers to an area or expanse.
Definition
A Magnetic Field is a region around a magnetic material or a moving electric charge within which the force of magnetism acts. It is represented by the symbol B and its SI unit is the Tesla (T).
Related Terms
- Magnetism: The force exerted by a magnetic field.
- Electric Field: A region around a charged particle or object within which a force would be exerted on other charged particles or objects.
- Electromagnetism: The interaction of electric currents or fields and magnetic fields.
- Tesla (unit): The SI unit of magnetic flux density or magnetic inductivity.
- Magnetic Flux: A measurement of the total magnetic field which passes through a given area.
- Magnetic Dipole Moment: A measure of the strength of a magnet or current-carrying coil, expressed as the torque per unit magnetic-flux density that the magnet or coil could exert in a magnetic field.
See Also
External links
- Medical encyclopedia article on Magnetic field
- Wikipedia's article - Magnetic field
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