A wire of diameter 6 mm and conductivity 11 x 107 S/m has 1341 free electrons/m³ whenan electric field of 19 mV/m is applied. Take the electronic charge as e =-1.6 x 109 C.Compute:(i)the charge density of free electrons.(ii)the current density.(iii) the current in the wire.(iv) the drift velocity of the electrons.

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A wire of diameter 6 mm and conductivity 11 x 10’ S/m has 134! free electrons/m when an electric field of 19 mV/m is applied. Take the electronic charge as e =-1.6 x 1019 C. Compute: (i) the charge density of free electrons. (ii) the current density. (iii) the current in the wire. (iv) the drift velocity of the electrons.

A wire of diameter 6 mm and conductivity 11 x 10’ S/m has 134! free electrons/m when an electric field of 19 mV/m is applied. Take the electronic charge as e =-1.6 x 1019 C. Compute: (i) the charge density of free electrons. (ii) the current density. (iii) the current in the wire. (iv) the drift velocity of the electrons.

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter12: Electronic Control Devices

Section: Chapter Questions

Problem 14RQ

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