A given mass of copper is made into a wire with a square cross section of side = 2mm. Another wire m

Feb 3rd, 2012
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A given mass of copper is made into a wire with a square cross section of side = 2mm. Another wire made with the same mass has a circular cross section of diameter = 2mm. Find the ratio of their electrical resistances.

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Answer on Question #43017 Physics Electric CircuitsQuestion.A given mass of copper is made into a wire with a square cross section of side = 2mm. Anotherwire made with the same mass has a circular cross section of diameter = 2mm.Find the ratio of their electrical resistances.Given:1 = 2 = 1 = 2 = 1 = 2 = = 2 = 2 Find:1=?2Solution.By definition electrical resistance is:= is the electrical resistivity of the material; is the length of the material; is the cross-secti

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