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Figure shows a cross-section of a long r...

Figure shows a cross-section of a long ribbon of width `omega` that is carrying a uniformly distributed total current i into the page. Calculate the magnitude and direction of the magnetic field `B` at a point `P` in the plane of the ribbon at a distance d from its edge. `

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The correct Answer is:
`(mu_(0)i)/(2pil)."in"(1+(l)/(x))`
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NN GHOSH-INTRODUCTORY NOTES-Exercise
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  17. A wide copper strip of width l is bent into piece of slendder tubing o...

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