vault backup: 2026-09-06 23:41:08

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+[[Electric Force, Field, and Potential]]
+# Summary
+* Change in electric potential energy for charge moving between 2 potentials $\Delta U_E=q\Delta V$ (J)
+* q can be positive or negative. $\Delta V=V_{final}-V_{initial}$.
+* Energy is conserved: $\Delta K=-\Delta U_E$
+* Positive charges speed up moving towards lower potential. Negative charges speed up moving towards higher potential.
+* Electric field points towards decreasing potential.
+* For particle starting at rest, kinetic energy gained equals magnitude of $q\Delta V$, lets you solve for final speed.