A conductor has a cross- sectional area of 2.3\( \times \)10-6 m2 and the number of free electrons per unit volume is 8.5\( \times )1028 electron/m³. When the current is 10 A, find the drift speed (in mm/s) of the electrons. Use the charge of the electron to be 1.6\( \times \)1019 C.

A conductor has a cross- sectional area of 2.3\( \times \)10-6 m2 and the number of free electrons per unit volume is 8.5\( \times )1028 electron/m³. When the current is 10 A, find the drift speed (in mm/s) of the electrons. Use the charge of the electron to be 1.6\( \times \)1019 C.

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

Chapter7: Tunneling Phenomena

Section: Chapter Questions

Problem 4P

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Question

A conductor has a cross-
sectional area of 2.3\( \times
\)10-6 m2 and the number of
free electrons per unit volume
is 8.5\( \times
\)1028 electron/m³. When the
current is 10 A, find the drift
speed (in mm/s) of the
electrons. Use the charge of
the electron to be 1.6\( \times
\)1019 C.
Select one:
O A. 31.97
O B. 0.22
OC. 41.97
OD. 0.42

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