An electromagnetic lock, magnetic lock, or maglock is a locking device that consists of an electromagnet and an armature plate. == Operation == The principle behind an electromagnetic lock is the use of electromagnetism to lock a door when energized.
An electromagnetic lock, magnetic lock, or maglock is a locking device that consists of an electromagnet and an armature plate. == Operation == The principle behind an electromagnetic lock is the use of electromagnetism to lock a door when energized.
Source: Wikipedia "Electromagnetic lock" · CC BY-SA 4.0
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