An infinitely long thin wire carrying a uniform linear static charg...

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An infinitely long thin wire carrying a uniform linear static charge
\( \mathrm{P} \) density \( \lambda \) is placed along the \( z \)-axis (Fig.The wire is set into

W motion along its length with a uniform velocity \( \mathbf{v}=v \hat{\mathbf{k}}_{z} \). Calculate the poynting vector \( \mathbf{S}=\frac{1}{\mu_{0}}(\mathbf{E} \times \mathbf{B}) \).
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