What is the magnitude of the applied electric field inside an aluminum wire of radius (1.0 mathrm{~mm})

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What is the magnitude of the applied electric field inside an aluminum wire of radius \(1.0 \mathrm{~mm}\) that carries a \(4.0-\mathrm{A}\) current \(\left[\sigma_{\text {aluminum }}=3.6 \times 10^{7} \mathrm{~A} /(\mathrm{V} \cdot \mathrm{m})\right]\) ?

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