What is a Magnetic Field?
| Magnetic Fields |
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The region surrounding a magnet (or current carrying conductor) is endowed with certain properties. One is that a small magnet in such a region experiences a torque that tends to align it in a given direction. The magnets field is a vector quantity; the direction of the field is defined as the direction that the north poles of the small magnet points when in equilibrium. The magnets field produces a magnetizing force on a body within it. Formally, the forces experienced by moving charged particles, current carrying wires, and small magnets in the vicinity of a magnet are due to magnetic induction (B), which includes the effect of magnetization, while the magnetic field is defined so as not to include magnetization. However, both B and H are often loosely used to denote magnetic fields. |
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