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An aluminum rod with a square cross section is 1.2 m long and 5.0 mm on...

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Physics

An aluminum rod with a square cross section is 1.2 m long and5.0 mm on edge. (a) What is the resistance between its ends? (b)What must be the diameter of a cylindrical copper rod of length 1.2m if its resistance is to be the same as that of the aluminum rod?The resistivity of aluminum is 2.75 × 10-8 Ω·m and the resistivityof copper is 1.69 × 10-8 Ω·m.

Answer & Explanation Solved by verified expert
3.8 Ratings (498 Votes)
Consider the aluminum rodLength Given that the crosssection of the rod is squareSo    See Answer
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