Aluminum wiring rated at 30.0 A maximum current is to be installed in the home. For safety reasons, it must generate no more heat than 15 watts per meter of length. (Aluminum resistivity is around 2.65 × 10-8•m).
i) What resistance must a 3.00 meter length of the wire encompass to safely carry 30.0 A?
ii) Determine how thick (diameter) does the wire encompass to be?