A nichrome wire is 2.0 m long with a radius of 0.40 mm and has a resistance of 3.0 Ω…

PHYSICS · Subjective · CBSE · Physics · Electricity · Electricity

Problem

A nichrome wire is 2.0 m long with a radius of 0.40 mm and has a resistance of 3.0 Ω at room temperature. A second wire of the same material is 6.0 m long with a radius of 0.80 mm. Determine the resistance of the second wire at the same temperature.

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