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Suppose we replaced the wire in Example 25.1 with 12-gauge copper wire, which has twice the diameter of 18-gauge wire. If the current remains the same, what effect would this have on the magnitude of the drift velocity vd? (i) None—vd would be unchanged; (ii) vd would be twice as great; (iii) vd would be four times greater; (iv) vd would be half as great; (v) vd would be one-fourth as great.
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University Physics with Modern Physics (14th Edition)
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- The current density on a copper wire is 1.15x10 A/m?. The radius of the copper wire is also 2.15 cm. If the potential difference at the ends of this copper wire is 15.2 kV, in which of the options is the energy transfer rate on this wire 31 - given correctly? O A) 10.8 kW O B) 17,6 kW O C) 25,4 kW O D) 30,4 kW O E) 38,1 kWarrow_forwardP Question 44arrow_forwardUnreasonable Results(a) What current is needed to transmit 1.00 X 102 MW of power at 10.0 kV? (b) Find the resistance of 1.00 km of wire that would cause a 0.0100% power loss. (c) What is the diameter of a 1.00-km-long copper wire having this resistance? (d) What is unreasonable about these results? (e) Which assumptions are unreasonable, or which premises are inconsistent?arrow_forward
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- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage LearningPrinciples of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
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