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Statement of a problem № 10603

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Two wires are made from the same material. One wire has a resistance of 0.10 Ω. The other wire is twice as long as the first wire and has a radius that is half as much. What is the resistance of the second wire? (a) 0.40 Ω (b) 0.20 Ω (c) 0.10 Ω (d) 0.050 Ω (e) 0.80 Ω




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