Someone uses 200 cm3 of copper to make a wire. The resistance is 18 ohms. What is the length of the copper wire? The resistivity of copper is 1.7x10-5
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A Si wire of diameter 2μm and length 200 micrometers has a resistance of 1000 ohms. Determine the resistivity of that Si in terms of ohm-cm. Suppose you make the same wire using copper, what should be its resistance?
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A copper wire has cross section area 0.002 m' and length of 400 m, what is the resistance of this copper wire? When a 200-V potential difference is applied over the wire, what is the current through the wire and what is the electric power? If the current is uniformly distributed, what is the current density? If the drift speed is 10 m/s, what is the number density of electrons in the wire? (Given copper's resistivity as 2x10 s2 m)....
How long is a wire made from 100 cm3 of copper if its resistance is 4.0 ohms? The resistivity of copper is 1.7 x 10-52 m. O 1.7*.10²m 2.6x 10²m 1.5 x 103 m 24 m 4.9 m