Physics, 27.09.2019 03:30, joey4843

Awire of length l and cross-sectional area a has resistance r. what will be the resistance rstretched of the wire if it is stretched to twice its original length? assume that the density and resistivity of the material do not change when the wire is stretched.

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Awire of length l and cross-sectional area a has resistance r. what will be the resistance rstretche...