At a Point $10 \mathrm {~m}$ Away from a Long Straight Thin Wire, the Magnetic Field

question 122

Short Answer

At a point $10 \mathrm {~m}$ away from a long straight thin wire, the magnetic field due to the wire is $0.10 \mathrm { mT }$ . What current flows through the wire? $\left( \mu _ { 0 } = 4 \pi \times 10 ^ { - 7 } \mathrm {~T} \cdot \mathrm { m } / \mathrm { A } \right)$

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