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The resistance of a wire of uniform cross-section is 100 ohms.the length of the wire is 5 m and its diameter is 0.04 cm.find the specific resistance of the

Formula for resistance is R = specific resistance X length of materal \area of material so 100 = specific resistance X 5\ pi R square 100 = rho X 5 X 10000 \3.14 X 0.04 X 0.04 [:. 1 cm = .001 m ] 100 = rho X 5 X 10000 \ 0.005024 100= rho X 9952229.29 100\9952229.29 =rho .000010048 ohm \ metre = specific resistance{ rho = specific resistance }