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The resistance of a metal wire of length 2 m is 40 Ω (Ohms) 20 °C. If the diameter of the wire is 1 mm, then what will be the resistivity of the metal at that temperature?

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The resistance of a metal wire of length 2 m is 40 Ω (Ohms) 20 °C. If the diameter of the wire is 1 mm, then what will be the resistivity of the metal at that temperature?






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