A cylindrical copper wire of a finite length is melted and

Last updated: 6/11/2023

A cylindrical copper wire of a finite length is melted and recasted in form of a wire of rectangul cross section of the same length Choose the correct statement from the following 1 The resistivity of the wire remains unchanged 2 The resistance of the wire changes 3 Both the resistance and the resistivity of the wire change 4 Volume of the wire changes