A long straight wire carries a conventional current of 0.4 A What is the approximate magnitude of the magnetic field at a location perpendicular distance of 0.018 m from the wire due to the current in the wire?
Added by Lawrence F.
Step 1
We can use the formula for the magnetic field due to a long straight wire, which is given by: B = μ₀I/2πr where B is the magnetic field, μ₀ is the permeability of free space (4π x 10^-7 T m/A), I is the current in the wire, and r is the perpendicular distance Show more…
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