here, consider three spools of wire of the exact same material. Spool 1 and 2 have the same cross-sectional area while Spool 3 is the largest of the three. In addition, Spool 1 has the longest length of the three. Which of the spools of wire has the largest resistivity? Choices:  Spool 1, Spool 2, Spool 3, They have same resistivity

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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.