Файл:Electromagnetism.pngFile:Electromagnetism.svg is a vector version of this file. It should be used in place of this PNG file when not inferior. File:Electromagnetism.png →
Файл:The electromagnetic spectrum.png0/PDMCreative Commons Public Domain Mark 1.0falsefalse English The electromagnetic spectrum applies to jurisdiction: United States of America determination
Файл:Cathode ray Tube.PNG en:Image:Cathode ray Tube.PNG English Cathode ray tube using electromagnetic focus and deflection determination method: SHA-1