1. electro-magnet, long range An electro-magnet so constructed with extended pole pieces or otherwise, as to attract its armature with reasonably constantforceover a considerable distance. The coil and plunger, q. v., mechanisms illustrate one method of getting an extended range of action. When a trueelectro-magnet is used, one with an iron core, only a very limitedrange is attainable at the best. (See Electro-magnet, Stopped Coil--do. Plunger.)
Definitions of electro-magnet, long range
