What is the resistance of a 13.0 length of this pipe?
resistance of any material can be calculated from this formula:- Rrl/A. where rresistivity,llengh and Ais the cross-sectional area. now for our case the cross-sectional area(outer area)-(inner area). outer areapieD^2/4 inner areapied^2/4. D is the outer diameter and d is the inner diameter. now look- out for the resistivity of copper and finish it. but remember all the SI units to be the same. good luck!!!!!
tricky aspect search at the search engines just that might help
