Also called geomagnetic equator. An imaginary circle around the earth, along which a magnetic needle shows no dip. It is near, but slightly displaced from, the geographic equator, and is midway between the geomagnetic poles.
1. A phonograph pickup of the variable-reluctance type (see VARIABLE-RELUCTANCE PICKUP). 2. A magnetic transducer (such as a phono cartridge, tape recording head, or
similar input element).
A property of certain materials, described in terms of the time required to magnetize a given substance to a specified level.