Resistance and Resistivity

Resistance and Resistivity problem 34

A 10 A current flows through a copper wire. The wire is laid in a thermally insulated tube. What should be the cross-sectional area of the wire so that it does not heat up by more than 10 K in 5 minutes?

The density of copper is , the specific heat of copper is , and the resistivity of copper is .


material editor: Josephine Emmanuel