Magnetic Field
The region in which the magnetic forces created by a permanent magnet or by a current-carrying conductor or coil can be detected.
Magnetic field lines around a permanent magnet.
The magnetic field lines can be visualised using iron filings or a compass.
Note the alignment of a compass with respect to the magnetic field lines.
See also: Magnet, Magnetic Field Probe, Magnetic Flux, Saturation.
Subjects: Electromagnetism