What is the resistivity of a 5-gauge wire (cross-sectional area of m2) of 5.00 m length, and 5.00 Ω resistance?
Find the resistance of a 20.0-m-long piece of copper wire that has a 2.053-mm diameter. Use a value of Ω⋅m for the resistivity of copper.
A coaxial cable consists of an inner conductor with radius of 0.2500 cm and an outer radius of 0.5000 cm. The cable has a length of 10.0 meters. Plastic with a resistivity of Ω⋅m separates the two conductors. What is the resistance of the cable?