Electromagnetism............and mines.........in Czechoslovakia............

Electromagnet - Wikipedia, the free encyclopedia

https://en.wikipedia.org/wiki/Electromagnet

Wikipedia

A simple electromagnet consisting of a coil of insulated wire wrapped around an ... An electromagnet is a type of magnet in which the magnetic field is produced ...

‎History - ‎Uses of electromagnets - ‎Physics - ‎High field electromagnets