diff --git a/01.curriculum/01.physics-chemistry-biology/03.Niv3/04.electromagnetism/cheatsheet.fr.md b/01.curriculum/01.physics-chemistry-biology/03.Niv3/04.electromagnetism/cheatsheet.fr.md
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+---
+Title : N3-electromagnetism-presentation
+Published : false
+---
+
+### Schéma conceptuel de l'électromagnétisme
+
+<!--pour niveau "contreforts"-->
+
+!()[general-scheme-electromagnetism-vacuum.jpg]
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