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Two wires of same material and length have resistances 5Ω and 10Ω respectively. Two wires of same material and length have resistances 5Ω and 10Ω

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Two wires of same material and length have resistances 5Ω and 10Ω respectively. Calculate the ratio of radii of the two wires.

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Resistance

∴ r1 : r2 = √2 : 1

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