Resistence of a wire of length 1m is 26ohm at 20°c.If diameter of wire is 0.33mm. What will be the resistivity of the metal at that temperature?
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Resistivity = R A / L = 26 * π 0.165² * 10⁻⁶ / 1
= 2.22 * 10⁻⁶ Ohm-m
= 2.22 * 10⁻⁶ Ohm-m
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