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Aluminum wires were used in the past (until, due to their thermal expansion properties, it was...

Aluminum wires were used in the past (until, due to their thermal expansion properties, it was found that they caused a lot of house fires). If a wire of copper, with a resistivity of 1.72 X 10-8 Ωm, was to be replaced with a wire of aluminum, resistivity of 2.65 X 10-8 Ωm, then how many times thicker would the aluminum wire have to be to offer the same resistance as a copper wire?

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Answer #1

Resistance formula = for Aluminium, BAILAI A, for copperi Ich Lou Rco=RAI 3All *= scutta Leo Says kw = 2.95 d₂ = 0.8o56di] →

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