Figure CP27.74 shows a wire that is made of two equaldiameter segments with conductivities Ï 1 and
Question:
a. Find an expression for the surface charge density η on the boundary. Give your result in terms of I, Ï1, Ï2, and the wires cross-section area A.
b. A 1.0-mm-diameter wire made of copper and iron segments carries a 5.0 A current. How much charge accumulates at the boundary between the segments?
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Related Book For
Physics for Scientists and Engineers A Strategic Approach with Modern Physics
ISBN: 978-0133942651
4th edition
Authors: Randall D. Knight
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