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The resistivity of aluminum is 2.82 ✕ 10−8 Ω · m. (a) Find the resistance of...

The resistivity of aluminum is 2.82 ✕ 10−8 Ω · m. (a) Find the resistance of an aluminum wire (in ohms) with a radius of 1.33 mm and a length of 1.28 m. Ω (b) Calculate the volume (in m3) of aluminum in the wire. m3 (c) Suppose that volume of aluminum is formed into a new wire with a length of 2.62 m. Find the new resistance of the wire (in ohms). Ω

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Answer #1

② Resistivity = 2.82X 16-arm Resistance = L = 2.02X 10 21:28 Trx (1:33 X 16-6) A R= 6.58 1032 ③ volume = 8²n=7. 113x10-6 m3 ②

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