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+# 2025-12-02 10:40:??
+
+#topic/construction/electrical
+
+> [!cite] [Hysteresis - Wikipedia](https://en.wikipedia.org/wiki/Hysteresis)
+> **Hysteresis** is the dependence of the state of a system on its history.
+> For example, a [magnet](https://en.wikipedia.org/wiki/Magnet "Magnet")
+> may have more than one possible
+> [magnetic moment](https://en.wikipedia.org/wiki/Magnetic_moment "Magnetic moment")
+> in a given [magnetic field](https://en.wikipedia.org/wiki/Magnetic_field "Magnetic field"),
+> depending on how the field changed in the past.
+> Such a system is called **hysteretic**.
+
+![[alternating-current#Ferroelectric Hysteresis]]