Not that it is terribly important, but it is interesting. Aluminium v copper.
The data I have states that for the same resistance per metre Al has to be 1.579 x Cu cross sectional area which equates to 1.25 x radius.
I think there are other qualities that make copper more suitable in many applications and weight certainly is not one of them.
Anyway I as many love your posts
Bob
Not that it is terribly important, but it is interesting....
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