define electromagnet
Noun. 1. electromagnet-a temporary magnet made by coiling wire around an iron core; when current flows in the coil the iron becomes a magnet. armature-coil in which voltage is induced by motion through a magnetic field. electric bell-a bell activated by the magnetic effect of an electric current.
Electromagnetism is a branch of physics which involves the study of the electromagnetic force, a type of physical interaction that occurs between electrically charged particles. The electromagnetic force usually shows electromagnetic fields, such as electric fields, magnetic fields, and light.