- #1
satchmo05
- 114
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Hey all,
I am looking at the American Wire Gauge chart listed on Wiki ([PLAIN]http://en.wikipedia.org/wiki/American_wire_gauge).[/PLAIN] I am attempting to determine how they are getting their copper resistance values.
From my education, DC resistance is equal to [length/(conductivity*pi*radius of wire2)]. For example, if I am using #6 AWG - radius is equal to 4.115[mm], conductivity of copper is equal to 5.96e7[S/m]. This gives me 0.3154[mOhm/m], nearly four times smaller than the accepted value of 1.3[mOhm/m].
Where am I going wrong? Thanks,
- Satchmo05
I am looking at the American Wire Gauge chart listed on Wiki ([PLAIN]http://en.wikipedia.org/wiki/American_wire_gauge).[/PLAIN] I am attempting to determine how they are getting their copper resistance values.
From my education, DC resistance is equal to [length/(conductivity*pi*radius of wire2)]. For example, if I am using #6 AWG - radius is equal to 4.115[mm], conductivity of copper is equal to 5.96e7[S/m]. This gives me 0.3154[mOhm/m], nearly four times smaller than the accepted value of 1.3[mOhm/m].
Where am I going wrong? Thanks,
- Satchmo05
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