Copper Wire - Electrical Resistance

Electrical resistance in plain copper wire

Electrical resistance in single core copper conductors:

Cross Sectional Area
(mm2)
Resistance
(ohm/km)
0.5 36.0
0.75 24.5
1.0 18.1
1.5 12.1
2.5 7.4
4.0 4.6
6.0 3.1
10 1.8
16 1.2
25 0.73
35 0.52
50 0.39
70 0.27
95 0.19
120 0.15
150 0.12
185 0.099
240 0.075
300 0.060
400 0.047
500 0.037
630 0.028

Copper wire - electrical resistance

Related Topics

  • Electrical - Electrical units, amps and electrical wiring, wire gauge and AWG, electrical formulas and motors

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