A copper wire has a diameter of 2.0 mm and a length of 3.0 m. It carries a current of 6.3 A. The density of free electrons in copper is 8.5×10 28 electrons per cubic meter and resistivity of copper is 1.7×10-8Ω.m. d )What is the drift velocity of free electrons? Or calculate the drift velocity of free electrons (or find the drift velocity of free electrons) e) Find the power dissipated as heat in the wire

A copper wire has a diameter of 2.0 mm and a length of 3.0 m. It carries a current of 6.3 A. The density of free electrons in copper is 8.5×10 28 electrons per cubic meter and resistivity of copper is 1.7×10-8Ω.m. d )What is the drift velocity of free electrons? Or calculate the drift velocity of free electrons (or find the drift velocity of free electrons) e) Find the power dissipated as heat in the wire

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter20: Electric Current, Resistance, And Ohm's Law

Section: Chapter Questions

Problem 70PE: Unreasonable Results (a) What current is needed to transmit 1.00 102 MW of power at 10.0kV? (b)...

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A copper wire has a diameter of 2.0 mm and a length of 3.0 m. It carries acurrent of 6.3 A. The density of free electrons in copper is 8.5×1028electrons per cubic meter and resistivity of copper is 1.7×10-8Ω.m.a) What is the current density in the wire?b) What is the resistance of the wire?c) What is the electric field in the wire?d) What is the drift velocity of free electrons? Or calculatethe drift velocity of free electrons (or find the drift velocity of freeelectrons)e) Find the power dissipated as heat in the wire
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