If a current of 2.4 A is flowing in a cylindrical wire of diameter 2.0 mm,...
a. 7.6
Homework Answers
area = pi*r^2
r= 2/2 = 1mm = 0.001m
current density = 2.4 / (3.14* 0.001^2) = 7.6 × 10^5 A/m2
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