Calculate the ratio of the resistance of 15.0m of aluminum wire 2.0mm in diameter, to 21.0m of copper wire 3.0mm in diameter.R(Al)/R(Cu)I keep getting 0.5008, but it says that's wrong.I need help.
well lamas make a type of wool that we use to make blankets and coats and lots of itchy clothingpeople dont usually like to use it because they usally buy clothing made from alpakas (cant spell sry) but they are used to make cloths and othere fabrics
Used resistivity ρ at 20°CYou may have to redo based on your courses numbersA π d? / 4 π (2.0mm)? / 4 3.142 10?? m? R ρ ? / A 2.83 10?? Ωm 15m / 3.142 10?? m? 0.1351Ω A π d? / 4 π (3.0mm)? / 4 7.069 10?? m? R ρ ? / A 1.72 10?? Ωm 21m / 7.069 10?? m? 0.05110Ω R_Al / R_Cu 0.1351Ω / 0.05110Ω 2.644 2.6 (rounded to 2 sig fig)
