An Electromagnetic field is an energy field produced by electrically charged objects that affects the behavior of charged objects in the vicinity of the field. A field of this nature is able to disrupt the normal operations of both computerized or mechanical technology and living beings.

P3X-562's electromagnetic field has less strength than that of Earth's, allowing Unity to live without decay. (SG1: "Cold Lazarus")

When an invisible spy infiltrated the Alpha site, a plan was created to use a Naquadah reactor to create a high-frequency electromagnetic field to attempt to de-cloak the spy. (SG1: "Allegiance")

On the planet M7G-677, a Zero Point Module powers a device which acts as a sort of an electromagnetic field which disables all electrical devices within the radius, including those of the Wraith and the Atlantians. (SGA: "Childhood's End")

A Wraith Mind manipulator projects an electromagnetic field which prevents normal radio communication. (SGA: "Phantoms")

Flagisallus emit a low frequency pulse and an electromagnetic field which, in combination, are very dangerous to humans. (SGA: "Echoes")

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