A metal wire has a resistance of 10.0 ? at a temperature of 20.0A????1C. If the same wire has a resistance of 10.7 ? at 82.9A????1C, what is the resistance of this wire when its temperature is ?20A????1C? 6.56 ?, 10.4 ?, 13.9 ?, 9.55 ?, 0.715 ?

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Resistivity

Resistivity is a characteristic property of the conductor’s material that measures the extent to which the material opposes the flow of current. It is denoted by the Greek letter “rho”. Electrical resistivity, also known as specific resistance, depends on the nature of the material of the conductor and is unaffected by its dimensions.