If it is known that the resistance of a copper wire of (200 m) long is equal to (21 N), and that the diameter of the wire is (0.4 mm). Find the resistivity of copper?
If it is known that the resistance of a copper wire of (200 m) long is equal to (21 N), and that the diameter of the wire is (0.4 mm). Find the resistivity of copper?
Chapter9: Current And Resistance
Section: Chapter Questions
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Transcribed Image Text:If it is known that the resistance of a copper wire of (200 m) long is equal to (21 2), and that the
diameter of the wire is (0.4 mm). Find the resistivity of copper?
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