Two wires A and B of different metals have their lengths in ratio 1 : 2 and their radii in ratio 2 : 1 respectively. I-V graphs for them is shown in the figure. Find the ratio of their (i) Resistances (Rₐ/R_B) and (ii) Resistivities (σₐ/σ_B)

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TextElectrical Resistivity and ConductivityCBSE PYQ

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