From c7b3f211ea117b33cadd70e317e540ef152cde43 Mon Sep 17 00:00:00 2001 From: eggy Date: Fri, 17 Feb 2023 10:59:10 -0500 Subject: [PATCH] ece106: add tut --- docs/1b/ece106.md | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/docs/1b/ece106.md b/docs/1b/ece106.md index f908718..47a52f9 100644 --- a/docs/1b/ece106.md +++ b/docs/1b/ece106.md @@ -333,7 +333,7 @@ Where $\vec dl$ is the path of the test charge from infinity to the point, and $ $$\vec E\bullet\vec{dl}=Edr$$ -Therefore, the potential due to a point charge is equal to: +Therefore, the potential due to a point charge is equal to (the latter is true only if distance from charge is always constant, regardless of distribution): $$V_p=-\int^p_\infty\frac{kQ}{r^2}dr=\frac{kQ}{r}$$ @@ -356,3 +356,7 @@ $$\vec E=-\nabla V$$ If $\vec E$ is constant: $$\vec E=\frac{Q_{enc\ net}}{\epsilon_0\oint dS}$$ + +The **superposition** principle allows potential due to different charges to be calculated separately and summed together to achieve the same result. + +