Differences

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

--- motors [2023/04/02 02:39] – [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} \\
-R &= resistance in Ω \\
+ρ &= \text{resistivity of material in Ωm }\\
-ρ &= resistivity of material in Ω × m \\
+L &= \text{length of the wire in m} \\
-L &= length of the wire in m
+A &= \text{cross-sectional area of the wire in m}^{2} \\
-A &= cross-sectional area of the wire in mm^{2}
 \end{align}