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We are given two resistance wires made of the same material if their lengths be in the ratio of 1:2 and radius in the ratio 2:1 the ratio of the resistance would beA. 1:1B. 1:2C. 2:1D. 1:8​

Answer»

Answer:D

Explanation:Resistance = RESISTIVITY × LENGTH ÷ CROSS sectional AREA and Cross sectional area = Pi × Radius × Radius



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