A current of \( 18 \mathrm{~A} \) flows in a long straight conducting wire. The magnetic field (...

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A current of \( 18 \mathrm{~A} \) flows in a long straight conducting wire. The magnetic field (in Gauss) at a point \( 45 \mathrm{~mm} \) from the wire in a direction perpendicular to the wire would be
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