3 ms·
Theoretically I would thing the sag itself should increase resistance since resistance increases with both length and smaller wire diameter. When the line lengt
by hanniabu 6y ago
Theoretically I would thing the sag itself should increase resistance since resistance increases with both length and smaller wire diameter. When the line lengthens the diameter should decrease (similar to stretching a piece of gum or putty).
- leni536 6y agoI don't think it should. Heat expansion should slightly increase the diameter.
- mensetmanusman 6y agoNot if the length increases to counteract it.
- sharpneli 6y agoIt doesn’t ”counteract” it. All dimensions increase based on the same coefficient. Same percentage increase on all axis. See https://en.m.wikipedia.org/wiki/Thermal_expansion https://en.m.wikipedia.org/wiki/Thermal_expansion and check the coefficient of expansion.
- function_seven 6y agoIt's not being stretched by an external force, though. It's expanding due to heat. The diameter would also expand some negligible amount I think.