Consider a copper wire with a diameter of 2.45 mm. (a) What is the drift speed of the electrons in the copper wire when a current of 16.0 A flows through it? Assume that each copper atom contributes one free electron to the metal. The density of copper is 8.92 g/cm. m/s (b) How does this drift speed compare to the random rms speed of an electron at 20.0°C? To make this comparison, determine the random rms speed of an electron at 20.0°C using the ideal gas model and find the ratio of the two speeds. Vrms

Modern Physics
3rd Edition
ISBN:9781111794378
Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Publisher:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Chapter12: The Solid State
Section: Chapter Questions
Problem 12P
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Consider a copper wire with a diameter of 2.45 mm.
(a) What is the drift speed of the electrons in the copper wire when
current of 16.0 A flows through it? Assume that each copper atom contributes one free electron to the
metal. The density of copper is 8.92 g/cm3.
m/s
(b) How does this drift speed compare to the random rms speed of an electron at 20.0°C? To make this comparison, determine the random rms speed of an electron at 20.0°C
using the ideal gas model and find the ratio of the two speeds.
Vrms=
Transcribed Image Text:Consider a copper wire with a diameter of 2.45 mm. (a) What is the drift speed of the electrons in the copper wire when current of 16.0 A flows through it? Assume that each copper atom contributes one free electron to the metal. The density of copper is 8.92 g/cm3. m/s (b) How does this drift speed compare to the random rms speed of an electron at 20.0°C? To make this comparison, determine the random rms speed of an electron at 20.0°C using the ideal gas model and find the ratio of the two speeds. Vrms=
Expert Solution
Step 1

Given that:

Diameter of copper wire = 2.45 mm,

density of copper = 8.92 g/cm3

Molar mass of copper = 63.546 g/mol

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