If a cubical block of copper of side math xmlns=http://www.w3.org/1...

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If a cubical block of copper of side math xmlns=http://www.w3.org/1998/Math/MathMLmn1/mnmo /momicm/mi/math is melted and redrawn into a cylindrical wire of length math xmlns=http://www.w3.org/1998/Math/MathMLmn2/mnmo /momicm/mi/math, then its resistivity becomes, (If resistivity of cube is math xmlns=http://www.w3.org/1998/Math/MathMLmiρ/mi/math temperature constant)
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