Question

an aluminum wire of length 2.0m and cross -section area 1.8 x 10power -6m has a resistance of 0.03 ohm. find the resistivity​

Answer 1

Answer: 27 × 10^(-9) ohm m

Explanation: p = RA/l

p = (0.03 × 1.8 × 10^(-6))/2 = 27 × 10^(-9) ohm m