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The resistance of a metal wire of length 2 m is 10 Ω at 25°C. If the diameter of the wire is 0.4 mm, what will be the resistivity of the metal at that temperature? [Given, π = 3.14]
3.6 x 10-6 Ωm
1.55 x 10-6 Ωm
6.3 x 10-5 Ωm
6.3 x 10-7 Ωm
6.3 x 10-7 Ωm
Practice and solve "The resistance of a metal wire of length 2 m is 10 Ω at 25°C. If the diameter of the wire is 0.4 mm,..." for General Science - Previous Year Paper 2024. The correct answer is Option D: 6.3 x 10-7 Ωm. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.
Practice and solve "The resistance of a metal wire of length 2 m is 10 Ω at 25°C. If the diameter of the wire is 0.4 mm,..." for General Science - Previous Year Paper 2024. The correct answer is Option D: 6.3 x 10-7 Ωm. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.