The resistivity of copper is 1.70 x 10-8 Ω ⋅ m. (a) Find the resistance of a copper wire with a radius of 1.29 mm and a length of 1.00 m. (b) Calculate the volume of copper in the wire. (c) Suppose that volume of copper is formed into a new wire with a length of 2.00 m. Find the new resistance of the wire.
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