(modern) B-field. / (dated) H-field.

The recording of a signal; sound or image, on a magnetizable vessel or medium for storage, and retrieval purposes.

(physics) a measure of the magnetisation of a material in a magnetic field; symbol μ. Materials with values less than 1 are diamagnetic those above are paramagnetic.

(physics) a measure of the magnetization of a material per unit of applied magnetic field

(physics) a thermometer whose operation is based upon Curie's law; typically used to measure temperatures below 1 K

Any of several reversals in the polarity of the Earth's magnetic field (such that a compass points South) that have happened over geologic time.

(physics) A hypothetical particle having an isolated north or south pole; the magnetic equivalent of an isolated electric charge.

(physics) the state of being a north pole or south pole; the magnetic equivalent of electric charge

(physics) a magnetic field with axial symmetry capable of converging a beam of charged particles of uniform velocity and of forming images of objects placed in the path of such beam

(physics) The torque exerted on a magnet within a magnetic field; a vector, being the product of the strength of the magnet and the distance between its poles.