philipvdb wrote:

I'm doing this just because most of the times we take things for granted without testing.

So, if I understand your test correctly, if you trim off the excess leads, the resistance basically stays the same, no matter the number of wraps? In my head that makes perfect sense.

The other half of your drawing, the one with excess leads, makes no sense at all to my limited logic. With excess leads, the resistance increases with the number of wraps? That's such a fun discovery :)
I'll probably never fully understand electricity, but I'd love to read an explanation for that. Very interesting.