Electric current through homes

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Question

At one time aluminum rather than copper wires were used to carry electric current through homes. Which wire must have the larger radius if they are the same length and need to have the same electrical resistance? Explain.

Resistivity of copper=?ρCu?=1.7×10-8 ?Ω?m;

Resistivity of aluminum =?ρAl

Reference no: EM133933913

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