Differences

This shows you the differences between two versions of the page.

--- motors [2023/04/02 02:36] – [Resistance, Resistivity, Electromagnet] jhagstrand
+++ motors [2023/04/02 12:13] (current) – [Resistance, Resistivity, Electromagnet] jhagstrand
@@ Line 483: / Line 483: @@
 \begin{align}
+R &= ρ × \frac{L}{A} \\
-R = ρ × \frac{L}{A}
+\text{where:}\\
+R &= \text{resistance in Ω} \\
+ρ &= \text{resistivity of material in Ωm }\\
+L &= \text{length of the wire in m} \\
+A &= \text{cross-sectional area of the wire in m}^{2} \\
 \end{align}