Question

what will be the resistance of copper wire of length 125 metre and diameter 3 millimetre at 20 degree Celsius

Answer 1

Answer:

AWG wire

size (solid)

Diameter

(inches)

Resistance per

1000 ft (ohms)

Resistance per

1000 m (ohms)

24

0.0201

25.67

84.2

22

0.0254

16.14

52.7

20

0.0320

10.15

33.2

18

0.0403

6.385

20.9

16

0.0508

4.016

13.2

14

0.0640

2.525

8.28

12

0.0808

1.588

5.21

10

0.1019

0.999

3.28