From 1c744c52c93cbecf95f9549cc9d8bd5ed47ef7a7 Mon Sep 17 00:00:00 2001 From: arc Date: Tue, 6 Jan 2026 07:43:06 -0700 Subject: [PATCH] vault backup: 2026-01-06 07:43:06 --- education/physics/PHYS2220/Electric Charge.md | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/education/physics/PHYS2220/Electric Charge.md b/education/physics/PHYS2220/Electric Charge.md index 49019fc..3abe0a1 100644 --- a/education/physics/PHYS2220/Electric Charge.md +++ b/education/physics/PHYS2220/Electric Charge.md @@ -16,4 +16,10 @@ - $q_1$ and $q_2$ are the charges - $r$ is the distance between those charges - The resulting force will push away if $q_1q_2$ is *positive*, and attract if $q_1q_2$ is negative. This is where the rule "opposites attract, like repels" comes from -- Coulomb's law only holds exactly true for *point charges* i.e a proton \ No newline at end of file +- Coulomb's law only holds exactly true for *point charges* i.e a proton or electron. + +# The Superposition Principle +The superposition principle states that: +> The net charge acting on a point charge is equal to the sum of all individual forces. + +This means that to find the net force ac \ No newline at end of file