Question: A copper transmission cable 100 km long and 10.0 cm in diameter carries a current of 125 A. (a) What is the potential drop across

A copper transmission cable 100 km long and 10.0 cm in diameter carries a current of 125 A.
(a) What is the potential drop across the cable?
(b) How much electrical energy is dissipated as thermal energy every hour?

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