The drawing below shows a cross section of a very long thin conducting plane of width w = 3.5 mm that is carrying a uniformly distributed total current I = 7.1 A into the page. What is the magnitude of the magnetic field (in milli-Tesla) at point P in the plane of the ribbon at a distance d = w/2 from its edge?

The drawing below shows a cross section of a very long thin conducting plane of width w = 3.5 mm that is carrying a uniformly distributed total current I = 7.1 A into the page. What is the magnitude of the magnetic field (in milli-Tesla) at point P in the plane of the ribbon at a distance d = w/2 from its edge?

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The drawing below shows a cross section of a very long thin conducting plane of width w = 3.5 m m that is carrying a uniformly distributed total current I = 7.1 A into the page.
What is the magnitude of the magnetic field (in milli-Tesla) at point P in the plane of the ribbon at a distance d = w / 2 from its edge?

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