The figure below represents a section of a circular conductor of nonuniform diameter carrying a current of
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Question:
The figure below represents a section of a circular conductor of nonuniform diameter carrying a current of I = 4.70 A. The radius of crosssection A1 is r1 = 0.450 cm.
(a) What is the magnitude of the current density across A1.
The radius r2 at A2 is larger than the radius r1 at A1.
(b) Is the current at A2 larger, smaller, or the same.
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