A metal rod is 2 m long and 8 mm in diameter. Compute its resistance if the resistivity of the metal is 1.76 x 10-8 W m.
Added by Ruben M.
Step 1
First, we need to find the cross-sectional area (A) of the rod. The diameter is given as 8 mm, so the radius (r) is 4 mm or 0.004 m. The cross-sectional area of a cylinder is given by the formula A = πr^2. Show more…
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