What is the resistance of a 6.9-m length of copper wire 1.5 mm in diameter? The resistivity of copper is 1.68 × 10-8 N - m. Express your answer to two significant figures and include the appropriate units. HA R = Value Units

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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.