ch26-p008 - i/A = J = constant. Thus, the answer is yes,...

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8. (a) Circular area depends, of course, on r 2 , so the horizontal axis of the graph in Fig. 26-24(b) is effectively the same as the area (enclosed at variable radius values), except for a factor of π . The fact that the current increases linearly in the graph means that
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Unformatted text preview: i/A = J = constant. Thus, the answer is yes, the current density is uniform. (b) We find i /( r 2 ) = (0.005 A)/( 4 10 6 m 2 ) = 398 4.0 10 2 A/m 2 ....
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This note was uploaded on 06/03/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.

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