the expression for best wire size

3:53

1:18

3:58

6:24

4:30

4:30

1:07

9:10

1:14

13:47

9:43

10:22

11:11

12:06

9:45

11:07

3:41

4:11

1:53

15:07

5:11

10:15

5:10

15:42

5:31

43:49

3:46

1:59

4:37

2:44

6:31

5:49

2:36

2:58

2:32

11:02

4:32

2:23

14:00

5:21