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(b) A sample of copper wire of 0.2mm radius has a length of 5m. If the resistivity of the copper is 1.7 x 10-12m, what would

What would be the resistance of the wire? Please check my answer.

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Your work is correct.
3 TZO2 X 10 m 5m 8 1.7x 10 .m Avea of Csoso- nection of wrse A = RT2 Resiotemce of wire A Sm 1.7 X10 M x RE 0.2xj03m) R= O. 6

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