A copper wire of cross-sectional area 2.50 times 10^-6 m^2 and length 4.00 m has a...

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Answer #1

a) J Cent denzity : 9-704 xn Assume. a Steady vote, the hermal enegy neratedl m 4o min. is (0.rox ⅔)(40) r 60): 2 SJx10MA

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