Magnetic field | Definition & Facts | Britannica
2025年1月18日 · magnetic field, a vector field in the neighbourhood of a magnet, electric current, or changing electric field, in which magnetic forces are observable. Magnetic fields such as …
Magnetic field - Wikipedia
A magnetic field (sometimes called B-field[1]) is a physical field that describes the magnetic influence on moving electric charges, electric currents, [2]: ch1 [3] and magnetic materials.
Magnetic Field - Definition, History, Illustration, Intensity, Origin ...
Magnetic Field is the region around a magnetic material or a moving electric charge within which the force of magnetism acts. A pictorial representation of the magnetic field which describes …
Magnetic Field: Definition, Equation, and Images - Science Facts
2022年3月9日 · A magnetic field is an invisible force field generated by a magnet (like bar magnet and horseshoe magnet), moving electric charge (like current-carrying wire, toroid, and …
Magnetic Fields: Definition, History, Unit, Applications & FAQs
2023年6月15日 · According to the definition of the magnetic field, it is the region around a magnet or current-carrying conductor around which the force of magnetism can be observed. It is a …
Magnetic Field: What is it? (And Why is it Important)
2012年2月24日 · A magnetic field is defined as a force field created by moving electric charges. It influences materials like iron and can propagate without any medium, even in a vacuum. …
What is a Magnetic Field? - Universe Today
2016年10月22日 · Magnetic fields can be defined in a number of ways, depending on the context. However, in general terms, it is an invisible field that exerts magnetic force on substances …
Magnetic Field: Definition, Causes, Formula, Units ... - Sciencing
2020年12月28日 · Magnetic fields are the cause of magnetic forces, and objects that exert magnetic forces on other objects do so by creating a magnetic field. Magnetic fields can be …
Magnetic Field: Definition, Properties, History and Examples - Toppr
A magnetic field refers to a vector field in the neighbourhood of a magnet, electric current or charging electric field. In here, the magnetic forces are observable. The moving electric …
Magnetic fields - OCR Gateway Magnetic fields - BBC
is the region around a magnet where a force acts on another magnet or on a magnetic material. A magnetic field is invisible, but it can be detected using a magnetic...