From 9501efdb03163d4a265022143b54fab8022acdda Mon Sep 17 00:00:00 2001 From: tactonbishop Date: Tue, 25 Oct 2022 10:30:05 +0100 Subject: [PATCH] Last Sync: 2022-10-25 10:30:05 --- Electronics/Voltage.md | 12 ------------ 1 file changed, 12 deletions(-) diff --git a/Electronics/Voltage.md b/Electronics/Voltage.md index 840fed6..e717249 100644 --- a/Electronics/Voltage.md +++ b/Electronics/Voltage.md @@ -52,18 +52,6 @@ As they move through the circuit the electrons encounter a **load** which is wha These examples demonstrate that the voltage rise: voltage drop ratio always evens out. -## Ground: zero potential - -We use the term **ground** to refer to zero potential - the point at which there is no difference of potential (voltage) that could generate current. - -We need ground to prevent electric shock from appliances and circuits. It keeps all devices at the same potential. - -In domestic settings appliances are **earth grounded**. The name comes from the fact that all appliances will ultimately connect to the earth to neutralise potential. This means there can be no difference of potential between circuits. - -In electronics ground doesn't refer to the specific appliance but is a concept of a zero reference point against which all voltages are measured. A measured voltage will be negative or positive with respect to ground. This said, all circuitry will also have a physical mechanism of discharging potential. - -// TODO: Don't really understand this so return to with better explanation - ## Distinguishing _voltage_ from _electric field_ It can be confusing that two different symbols often seemed to be used interchangeably when talking about voltage: $V$ and $E$. However, while they broadly point to the same phenomenon there is a difference in emphasis.