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A uniform copper wire of mass 2.23xx10^(...

A uniform copper wire of mass `2.23xx10^(-3)` kg carries a current of 1 A when 1.7 V is applied across it. Calculate its length and area of cross-section. If the wire is uniformly stretched to double its length, calculate the new resistance. Density of copper is `8.92xx10^(3) kg m^(-3)` and resistivity is `1.7xx10^(-8) Omega` m.

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A uniform copper wire of mass 2.23 xx10^(-3) kg carries a current of 1 A when 1.7 V is applied across it. Calculate the length and the area of cross section, if the wire is uniformaly stretched to double its length, calculate the new resistance. Density of copper is 8.92xx10^3 kgm^(-3) and resistivity is 1.7xx10^(-8) Omega m.

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