Question 32An aluminium cable of diameter 4 x 10-3m and resistivity 3.0 x 10-8\(\omega\)m has a resistance of 21\(\Omega\). Calculate the length of the cable. (\(\pi = 3.14\))A.8.0 x 102mB.8.8 x 103mC.8.0 x 104mD.8.8 x 104mObjective Show full explanation