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A cylindrical copper wire, whose radius is r = 0.0444 mm, carries a current of I...

A cylindrical copper wire, whose radius is r = 0.0444 mm, carries a current of I = 3.33 A. The resistivity of copper is ρ = 1.68 × 10 − 8 Ω ⋅ m. What is the magnitude of the electric field in the wire?  

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Answer #1

E = 3.33 X 1.688108 6.19 xlorg rlwire) = 0.0444 x 103 m I (current) = 3.33A S = )68 X10-82 Ohms law. N=2R E.L=1 Pd E = i Р A=

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