Fundamentals of Engineering Electromagnetics 1st Edition by David Cheng

Exercise 11

A d-c voltage of 6 (V) applied to the ends of 1 (km) of a conducting wire of 0.5 (mm) radius results in a current of 1/6 (A). Find
a) the conductivity of the wire,
b) the electric field intensity in the wire,
c) the power dissipated in the wire,
d) the electron drift velocity, assuming electron mobility in the wire to be 1.4 × 10 3 (m 2 /V · s).