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A very long flat conducting strip of width d and negligible thickness lies in a horizontal plane and carries a uniform current I across its cross section.

a) Discover the field at points a distance directly above its center, assuming the strip is infinitely long. [Hint: Divide the strip into many thin "wires," and sum (integrate) over these.]

Express in terms I, d, y and appropriate constants.

b) What Value does B approach for y>>d?

c) Does this make sense? Describe.

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Category:- Physics
Reference No.:- M91190925

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