An aluminum rod with a square cross section is 2.0 m long and 6.6 mm on edge. (a) What is the resistance between its end
Posted: Sun Jul 17, 2022 4:50 pm
An aluminum rod with a square cross section is 2.0 m long and6.6 mm on edge. (a) What is the resistance between its ends? (b)What must be the diameter of a cylindrical copper rod of length 2.0m if its resistance is to be the same as that of the aluminum rod?The resistivity of aluminum is 2.75 × 10-8 Ω·m and the resistivityof copper is 1.69 × 10-8 Ω·m.