Assuming that you would want to make a uniform wire out of 5 grams of copper. If this wire is to have a resistance R= 1.5 ohm, and if all the copper wire is to be used, what will be the length, and the minimum diameter of this wire?  density of Cu = 8.92 x 103 kg/m3  Resistivity of Cu = 1.7 x 10-8

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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.