A copper wire of radius a ! 0.250 mm has an aluminum
Chapter , Problem 47(choose chapter or problem)
A copper wire of radius a ! 0.250 mm has an aluminum jacket of outer radius b 0.380 mm. There is a current i !2.00 A in the composite wire. Using Table 26-1, calculate the currentin (a) the copper and (b) the aluminum. (c) If a potential differenceV ! 12.0 V between the ends maintains the current, whatis the length of the composite wire?
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